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- Center of Military History8
- United States. Congress. Senate4
- Gillett, Mary C.3
- Charbonneau, André2
- Hirshhorn Museum and Sculpture Garden2
- Johnson, J. Keith2
- Library of Congress2
- Macdonald, John Alexander, Sir, 1815-18912
- Maitland, Leslie2
- National Gallery of Art (U.S.)2
- National Portrait Gallery (Smithsonian Institution)2
- Parks Canada2
- Parks Canada. National Historic Parks and Sites Branch2
- Smithsonian Institution. Press2
- United States2
- United States Air Force Academy. Library2
- United States. Congress. Senate. Office of the Curator2
- United States. National Park Service2
- Allen, Robert S.1
- Allen, Sue, 1918-20111