Repository
- Stanford University Libraries. Special Collections and University Archives11
- University of Michigan. Bentley Historical Library8
- Central Michigan University Clarke Historical Library4
- David M. Rubenstein Rare Book and Manuscript Library4
- Hoover Institution Archives2
- Indiana University, Archives of African American Music and Culture (AAAMC)2
- Stanford University Libraries. Cubberley Education Library2
- University of Michigan. William L. Clements Library2
- Indiana University, Center for Documentary Research and Practice1
- National Library of Medicine. History of Medicine Division1
- University of Michigan. Special Collections Research Center1