Repository
- Stanford University Libraries. Special Collections and University Archives1,207
- Central Michigan University Clarke Historical Library1,179
- University of Michigan. Bentley Historical Library1,111
- David M. Rubenstein Rare Book and Manuscript Library667
- University of Michigan. William L. Clements Library521
- Indiana University, Archives of African American Music and Culture (AAAMC)219
- Indiana University, Center for Documentary Research and Practice194
- University of Michigan. Special Collections Research Center114
- Hoover Institution Archives107
- National Library of Medicine. History of Medicine Division36
- Stanford University Libraries. Cubberley Education Library34