In the late 1940's when it was determined that Sherwood Anderson's papers would be deposited at the Newberry Library, library staff in conjunction with Eleanor Anderson started a project wherein they contacted Anderson's prominent correspondents and asked for their copies of Anderson's letters to be donated to the collection. This series includes copies of the form letters sent, an information sheet about the contact, and the contact's reply.

The series includes correspondence from Stringfellow Barr, Millen Brand, Whit Burnett, Trigant Burrow, Erskine Caldwell, Jacques Chambrun, Edward Estlin Cummings, Mitchell Dawson, Floyd Dell, John Dos Passos, Max Eastman, George Grosz, Maurice Hanline, Ben Huebsch, Alfred Knopf, J.J. Lankes, Otto Liveright, Anita Loos, John Marin, H.L. Mencken, Henry Miller, George Jean Nathan, Georgia O'Keeffe, Ferdinand Schevill, Jean Toomer, and Stark Young.