The Julia Collier Harris Papers consist primarily of received correspondence related to the journalistic work of Julia Harris and her husband in support of social and civic improvement, and their work for the Columbus Enquirer- Sun. Among the more than 300 letters are those of Sherwood Anderson, Gamaliel Bradford and George Washington Carver, as well as 137 letters from Geraldine Farrar (after her retirement from Metropolitan Opera to civic and war service). Sixty-seven letters from H.L. Menken and letters from Louis Bromfield, Dorothy Canfield Fisher, Cora Wilson Stewart and numerous other persons of importance are also included. Other materials such as clippings, manuscripts, and photographs are interfiled among some of the correspondence.

This collection also includes typescripts of unpublished papers by Julia Harris for the Atlanta "History Club," Harris' published articles for the Columbus Enquirer-Sun and the Chattanooga Sunday Times, manuscripts of her review of the George Washington Carver biography and impressions of Europe written for the New York Herald Magazine Supplement as well as a memorabilia and a photograph of the Harrises with Sherwood Anderson (1929).