Author
National Geographic Society (U.S.)
White House Historical Association
3
Aikman, Lonnelle
2
Boces film coop (Montrose, Colo.)
1
Klapthor, Margaret Brown
1
Marshall, E. G., 1914-1998
1
National Geographic Society (U.S.). Educational Services
1
Robinson, Mary, 1944-
1
United States Capitol Historical Society
1
WQED (Television station : Pittsburgh, Pa.)
1
ePals
1