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- United States. Congress (42)
- United States. Dept. of State. Historical Office (16)
- United States. Dept. of State. Office of the Historian (16)
- United States. Dept. of State (10)
- Slany, William Z. (9)
- Aandahl, Fredrick (8)
- Glennon, John P., 1932- (6)
- Bernbaum, John A. (5)
- Baehler, David M. (3)
- Gleason, S. Everett (3)
- Schwar, Harriet D. (3)
- Mabon, David W. (2)
- Petersen, Neal H. (2)
- Sampson, Charles S. (2)
- Churchill, Rogers P. (1)
- Claussen, Paul (1)
- Goodwin, Ralph R. (1)
- Kane, N. Stephen (1)
- Keefer, Edward C. (1)
- Kitchens, Allen H. (1)
- Raether, Carl N. (1)
- Rose, Lisle Abbott, 1936- (1)
- Sanford, William F. (1)