In Flanders fields the answer, Flanders

This is a public-domain musical notation scan. There were many music publishers in the United States during the 1900s. Some of the most well-known ones include G. Schirmer, Inc., Boosey & Hawkes, and Hal Leonard Corporation. G. Schirmer, Inc. was founded in 1861 and published a wide range of classical music, including works by composers such as Bach, Beethoven, and Mozart. Boosey & Hawkes was founded in 1930 and published classical and contemporary music, including works by composers such as Benjamin Britten and Leonard Bernstein. Hal Leonard Corporation was founded in 1947 and is known for publishing a wide range of music, including jazz, rock, and pop.