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- United States. National Aeronautics and Space Administration16,565
- Geological Survey (U.S.)14,335
- United States. Congress. House. Committee on Naval Affairs5,934
- Langley Research Center4,129
- United States. War Department3,722
- Research Publications, inc2,638
- Yale University. Library2,407
- United States. Congress. House2,401
- United States. Army. Air Corps2,095
- United States. Federal Emergency Management Agency2,001
- United States. Congress. Joint Committee on Taxation1,834
- United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch1,809
- United States. Congress. House. Committee on Ways and Means1,626
- Franklin, Benjamin, 1706-17901,560
- United States. Bureau of the Census1,529
- United States International Trade Commission1,467
- United States. Army. Quartermaster Corps1,436
- Ames Research Center1,402
- Walter L. Pforzheimer Intelligence Collection (Beinecke Rare Book and Manuscript Library)1,369
- United States. Congress. Senate1,368