1919 June 26
National Association for the Advancement of Colored People . Ohio Branch
Cleveland (Ohio) - A report from the tenth anniversary conference committee on location for the conference. Signed by A. D. Williams, J. C. Cooper, and Mary E. Wilson.
1929 May 16
National Association for the Advancement of Colored People . 20th Annual Conference Committee
Cleveland (Ohio) - Concerning a speaking engagement by Du Bois at the Cleveland Museum of Art on the "Negro in Art" during the NAACP Conference.