2 of 2 people found this helpful
A colleague from NARA's Still Pictures unit offers these suggestions:
"For textual materials more relevant to the photo operation, the inquirer is going to have better luck with the Roy Stryker Papers (1935-43) at the Archives of American Art (lots of direct Stryker-Rothstein correspondence in this set of microfilmed papers), the Roy Stryker Papers (1924-1972) at the University of Louisville Photographic Archives (also microfilmed), and the Resettlement Administration-Farm Security Administration-Office of War Information Written Records: Office Files, Caption Lists, Supplementary Reference Files (1935-1943) in the Library of Congress Prints and Photographs Division (on microfilm as well). There isn't going to be correspondence or other background documentation on each and every RA/FSA assignment, but there are references of one sort or another to a good many, so these sources are worth checking."
Good luck with your search!