Jack Manning (1920-2001) Harlem document, 1937. From Aaron Siskind Photo League Project. Silver print (c. 1975), signed, titled, dated and annotated in ink in the lower margin. Image : 22 x 31 cm - Sheet : 26,3 x 35,5 cm - frame In the late 1930s, under the direction of Aaron Siskind, photographers from the Photo League, including Jack Manning, set out to document the Harlem neighborhood and the lives of its inhabitants.