Fifty Years of Freedom. Report of Committee Representing State of Wisconsin At the Celebration of the Half-Century Anniversary of the Emancipation Proclamation in Chicago. Privately printed by the Committee, Wisconsin., 1915-08-22/09-16, Item 1, Box: 3, Folder: 120. Dwight B. Waldo Lincoln Collection, RH-A-3651. Western Michigan University Archives & Regional History Collections. https://aspace.library.wmich.edu/repositories/3/archival_objects/32542 Accessed April 28, 2024.