Authors: State by State (sorted by popularity)
- Museum of History and Technology (U.S.) - 212 downloads
- United States. Office of Civil Defense - 192 downloads
- United States. Public Health Service - 191 downloads
- Taft, William H. (William Howard) 1857-1930 190 downloads
- United States. Department of Defense - 173 downloads
- Army War College (U.S.) - 172 downloads
- Mississippi Historical Society - 171 downloads
- United States. Congress. House. Committee on Un-American Activities - 170 downloads
- U.S. Army Ballistic Research Laboratory - 154 downloads
- United States. Department of Commerce - 141 downloads
- United States. Department of Agriculture - 133 downloads
- Eisenhower, Dwight D. (Dwight David) 1890-1969 132 downloads
- United States. National Conservation Congress - 131 downloads
- United States Tariff Commission - 127 downloads
- New York State Historical Association. Meeting - 127 downloads
- United States. Patent Office - 126 downloads
- United States. Forest Service - 123 downloads
- McBride, James 1788-1859 119 downloads
- United States. Bureau of Naval Personnel - 117 downloads
- Kansas State Horticultural Society - 116 downloads
- Van Buren, Martin 1782-1862 116 downloads
- United States. Navy Department. Bureau of Ordnance - 110 downloads
- United States. Marine Mammal Commission - 102 downloads
- United States. Office of Education - 100 downloads
- Harding, Warren G. (Warren Gamaliel) 1865-1923 99 downloads