Author
Afro-American Historical and Genealogical Society (Washington, D.C.)
2
Czechoslovak American Center
2
Polish Club of Washington, D.C
2
Polish National Alliance of the United States of North America Group 848 (Washington, D.C.)
2
Anthropological Society of Washington (Washington, D.C.)
1
Columbia Historical Society (Washington, D.C.)
1
Columbia Institution for the Deaf and Dumb (Washington, D.C.)
1
German Historical Society (Washington, D.C.)
1
Howard University
1
Hygienic Laboratory (U.S.)
1
Mount Alban Institute
1
National Portrait Gallery (Smithsonian Institution)
1
Smithsonian Institution
1
Supreme Court Historical Society
1