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- Bernbaum, John A. (6)
- United States. Congress (5)
- Slany, William Z. (4)
- United States. Dept. of State. Office of the Historian (4)
- Aandahl, Fredrick (3)
- Baehler, David M. (1)
- Gleason, S. Everett (1)
- Sampson, Charles S. (1)
- United States. Dept. of State (1)
- United States. Dept. of State. Historical Office (1)