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Dee "D" supporting tank at the 60-inch cyclotron. Left to right: Donald Cooksey, Charles Seymous (president of Yale University), and Ernest Orlando Lawrence, date unknown. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dee "D" supporting tank at the 60-inch cyclotron. Left to right: Charles Seymous (president of Yale University), Ernest Orlando Lawrence, and Donald Cooksey, date unknown. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Professor Ernest Rutherford, F.R.S. in his laboratory. He was considered the father of nuclear physics winning the Nobel Prize in Chemestry in 1908. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Le Conte Hall, University of California, Berkeley. View of the east facade with Bacon Hall and the Campanile in the background, taken in 1926. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Arthur H. Compton, Nobel Prize in Physics, 1927. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Glenn Seaborg at age 17, taken April 1929. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Robert Stone with new X-ray machine. Examiner photograph by Dan Wilkes taken 8/05/1931. XBB688-4931. Principal Investigator/Project: Analog Conversion Project [Photographer: Dan Wilkes--San Francisco Examiner]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Robert Stone with new X-ray machine. Examiner photograph by Dan Wilkes taken 8/05/1931. XBB688-4930. Principal Investigator/Project: Analog Conversion Project [Photographer: Dan Wilkes--San Francisco Examiner]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Early photo of old Chemistry Building, University of California, Berkeley. Photo taken in December of 1934. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Van De Graafgenerator at Round Hill, Massachusetts, probably taken between 1933 and 1935. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Nitrogen recoils from neutrons, taken 1936 or 1937, attributed to: Franz N.D. Kurie. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch magnet water tanks in the Old Radiation Laboratory, print taken in 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron tank #4, Franz N.D. Kurie, and Dean Cowie, taken 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron tank #4, taken 1937. Principal Investigator/Project: Analog Conversion Project [Photographer: William Schoeb Photography, San Francisco, California]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence with the 37-inch cyclotron, taken in 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

The Old Radiation Laboratory (ORL) building demolished 1960. Historical Cooksey, taken in 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron tank #4, taken 1937. Principal Investigator/Project: Analog Conversion Project [Photographer: William Schoeb Photography, San Francisco, California]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron tank #4, taken 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence with the 37-inch cyclotron, taken in 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron tank #4, taken July 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Tank #4 at the 37-inch cyclotron, taken August 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron, deuteron beam out, taken August 1937. See also XBD9703-00006 cyclotron shown without beam. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

U.S. President Herbert Hoover, at the Bohemian Grove, circa 1939. Credit Hoover Institute Archives. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence portrait, 1939. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Rear view of 60-inch cyclotron in early stages showing the fastest high-vacuum pump in the world, taken March 20, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence with movie men preparing for Nobel Prize talk. Photo taken November 10, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Filming of Ernest Orlando Lawrence giving Nobel Prize talk. Photo taken November 10, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence writing talk for Nobel Prize movie, taken November 10, 1939.See also: XBD200106-00998.PSD Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence (left) and John H. Lawrence. Photo taken November 10, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Lab personnel at Crocker Lab for Nobel Prize occasion. Salisbury (second from left), Brobeck, Kruger, Backus, Aebersold, Luis Alvarez (rear), Corson, Kamen, Wilson, Edwin McMillan, and two unknown individuals. Photo taken November 10, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest O. Lawrence Nobel Award announcement on blackboard, November 11, 1939. Principal Investigator/Project: Image Library Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dr. Warren H. Lewis, taken November 11, 1939. Damaged negative Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Neutron callibrator with Winfield Salisbury, taken November 11, 1939 Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Mr. Shuler, taken for Saturday Evening Post article, November 14, 1939 Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence sitting at his desk with pencil in hand, referenced as "best picture given to Walke," taken November 15, 1939. See also: XBD200106-00940.tif Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence writing at desk, taken November 15, 1939. Damaged negative. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

DiBiasi Restaurant dinner cake. "8 Billion Volt (cyclotron) or Bust. Congratulations, Your Career is Showing Promise," taken November 17, 1939. Radiation Lab dinner in honor of Ernest Orlando Lawrence for winning the Nobel Prize. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

DiBiasi Restaurant dinner. Ernest Orlando Lawrence (left), Harold Walke, and Paul Aebersold (with cake), taken November 17, 1939. Radiation Lab dinner in honor of Ernest Orlando Lawrence for winning the Nobel Prize. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

DiBiasi Restaurantdinner. Ernest Orlando Lawrence (left) and Harold Walke, taken November 17, 1939. Radiation Lab dinner in honor of Ernest Orlando Lawrence for winning the Nobel Prize. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

DiBiasi Restaurant dinner. Ernest Orlando Lawrence (left), Harold Walke, and Paul Aebersold (standing), taken November 17, 1939. Radiation Lab dinner in honor of Ernest Orlando Lawrence for winning the Nobel Prize. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

DiBiasi Restaurant dinner cake. "8 Billion Volt (cyclotron) or Bust," taken November 18, 1939. Radiation Lab dinner in honor of Ernest Orlando Lawrence for winning the Nobel Prize. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Paul Aebersold at treatment port, taken November 20, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

First patient 60-inch cyclotron. Robert Stone and John Lawrence treating Robert Penny at the 60-inch neutron port. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence at desk, taken November 22, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence (right) and Alfred Loomis, taken November 22, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence, taken November 22, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence, taken November 22, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence, taken November 22, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence's boat, the Delta Ray, on railroad car. Photo taken November 24, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence's boat, the Delta Ray, on railroad car. Photo taken November 27, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Back of Ernest Orlando Lawrence's Nobel Prize notification envelope, taken December 7, 1939. See also XBD201006-00924.tif for envelope front. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

A group walking down path overlooking Strawberry Canyon, taken December 13, 1939. Ernest Orlando Lawrence far right. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Wilson ion source to be installed between Dees, associated with 60-inch cyclotron, taken December 16, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Uncropped version of184-inch cyclotron charcoal drawing by S.L. Berger. Includes original notations and figures to show scale. See also XBD200903-00084 sent to NARA 4/01/2010. Photo taken December 29, 1939. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Vannevar Bush (left) and Arthur H. Compton at Del Monte Lodge, 1940. Principal Investigator/Project: Image Library Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Uncropped version of184-inch cyclotron charcoal drawing by S.L. Berger. Includes original notations. See also XBD200911-00969.tif sent to NARA 4/01/ 2010. Photo taken January 3, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dr. Warren Weaver, taken January 9, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dr. Warren Weaver, taken January 9, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

P. Gerald Kruger, taken January 12, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

West Dee support. Note that copper is split nearly half way around due to R.F. heating. Cause: Tabs were hard soldered in place thereby melting away soft solder on cooling pipes underneath, taken January 20, 1940. Partial view of Edwin McMillan, right. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

New Dee support. Copper cover ends for attaching to Dee housing. Noted as "great improvement," taken January 24, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Fourth cyclotron. 1 1/4 MEV Protons. View of the 11-inch cyclotron with something added, taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Fourth cyclotron. 1 1/4 MEV Protons. View of the 11-inch cyclotron with something added, taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch Dees "ready to go in," March 1939. Photo taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

First two 4-inch cyclotrons, taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

75-ton 37-inch deuteron beam out. The Federal Telegraph magnet shown with new 37-inch pole tips. A beam of deuterons of about 6.3 meV. is seen coming from the target chamber, taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron, tank number two. Photo taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron, tank number one with single Dee. Photo taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

1933 - Standing before 74 tons of iron and copper are Professor M. Stanley Livingston (left) now of the Massachusetts Institute of Technology and Professor Ernest Orlando Lawrence. Magnet development has continued to expanded more nearly to its capacity, producing the new nuclear particles known as neutrons in quantities sufficient for actual human therapy. Negative envelope dated February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch cyclotron, tank number four. Put into use August 1937. Photo taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dr. Edwin McMillan with Edwin W. Condon (right) , co-director of Westinghouse Labs, taken February 8,1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron cover. Coil bank coming out for repairs, taken February 8,1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Riggers removing wooden spacers between lower core and oil tank from 60-inch cyclotron, taken February 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Lower pole tip removed. Worker jacking-up the lower coil bank from the 60-inch cyclotron, taken February 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron. Last coil about to be replaced. Note that half the brass clamps are removed prior to being replaced with maple, taken February 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron. Replacing last coil in lower bank, with maple clamps in place, taken February 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

From lower left, clockwise: William Brobeck, John Backus, Paul Aebersold, and S.N. Van Voorhis working on last coil of upper bank on the 60-inch cyclotron. Photo taken February 13, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Dr. Pecher with rabbits in treatment room of 60-inch cyclotron, taken March 20, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Margaret Lewis (left), and Margaret Reed Lewis (right) with microscopes, taken March 25, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Sinclair Lewis (Noble prize for literature 1930, left), Herbert Evans (Berkeley medical researcher, center), and Ernest Orlando Lawrence (right), taken April 8, 1940. 184-inch cyclotron charcoal drawings by S.L. Berger in background. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron with water cans used for shielding. Photo taken April 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron with water cans used for shielding. Photo taken April 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch cyclotron model with toy cars used for scale. Photo taken April 13, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Indiana cyclotron with Larry Langer and Franz N.D. Kurie. Indiana University, involved in the construction of their first cyclotron, joined the Manhattan Project. Photo taken April 20, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence standing next to cyclotron at Purdue. Negative envelope dated April 20, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence standing beside the cyclotron at Purdue University. Photo taken April 20, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Indiana cyclotron controls. M. Stanley Livingston (standing, left), and Franz N.D. Kurie (right) at controls, taken April 20, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence (right); Alfred Lee Loomis, philanthropist, attorney, banker, physicist (center); and Warren Weaver, mathematician (left) participating in preliminary meetings of the Manhattan Project in a room at the Wardman Park, Washington, D.C. Photo taken April 22, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Left to right: Bert, Ernest Orlando Lawrence, Mable, and Elsie Blumer, taken May 5, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Left to right: Mable, Bert, Donald Cooksey, and Elsie Blumer, taken May 5, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence reading in Pullman train compartment while crossing Nevada. Negative envelope dated May 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Yale professor Charlton Dows Cooksey (brother of Donald Cooksey) with model 184-inch magnet test setup. Note the common shaft driving coils in both models, taken May 22, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Robert Rathbun Wilson with wife, Jane Inez Scheyer, taken August 21, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Diego Rivera and Ernest Orlando Lawrence, with John Lawrence in the background. Photo taken August 28, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

J.R. Richardson, just above site for 184-inch cyclotron, taken August 30, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Construction site of 184-inch cyclotron showing test holes. Photo taken August 30, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Lee De Forest, inventor (left) with Ernest Orlando Lawrence, taken September 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Lee De Forest, inventor (left) with Ernest Orlando Lawrence, taken September 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Left side of panorama of the pastoral view of the future construction site for the 184-inch cyclotron. Photo taken September 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Right side of panorama of the pastoral view of the future construction site for the 184-inch cyclotron. Photo taken September 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab