Authors: United States.
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- Taft, William H. (William Howard) 1857-1930 1356 downloads
- Geological Survey (U.S.) - 1312 downloads
- United States. Congress. House. Committee on Un-American Activities - 1287 downloads
- United States Tariff Commission - 1187 downloads
- United States. Office of Civil Defense - 1153 downloads
- Army War College (U.S.) - 1147 downloads
- Van Buren, Martin 1782-1862 1125 downloads
- United States. Navy Department. Bureau of Ordnance - 1104 downloads
- Eisenhower, Dwight D. (Dwight David) 1890-1969 1102 downloads
- United States. Congress. House. Committee on Patents - 990 downloads
- United States. Department of Commerce - 957 downloads
- United States. Department of Agriculture - 916 downloads
- United States Food Administration - 896 downloads
- United States. Department of the Army - 838 downloads
- United States. Forest Service - 793 downloads
- Bush, George 1924-2018 792 downloads
- Harding, Warren G. (Warren Gamaliel) 1865-1923 767 downloads
- United States. Congress. Senate. Committee on Patents - 702 downloads
- United States. Army Air Forces - 692 downloads
- Northwest Territory Celebration Commission (U.S.) - 684 downloads
- Federal Writers' Project - 684 downloads
- United States. Federal Interdepartmental Task Force on the Potomac - 672 downloads
- United States. Foreign Operations Administration - 668 downloads
- Jet Propulsion Laboratory (U.S.) - 659 downloads
- United States. Air Force - 656 downloads