Authors: United States.
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- Coolidge, Calvin 1872-1933 3196 downloads
- Harrison, Benjamin 1833-1901 3105 downloads
- Roosevelt, Franklin D. (Franklin Delano) 1882-1945 3075 downloads
- United States. National Aeronautics and Space Administration - 3029 downloads
- Adams, John 1735-1826 2911 downloads
- United States. National Conservation Congress - 2784 downloads
- Kennedy, John F. (John Fitzgerald) 1917-1963 2783 downloads
- Federal Writers' Project of the Works Progress Administration for the State of North Dakota - 2516 downloads
- Girl Scouts of the United States of America - 2398 downloads
- United States. Agricultural Research Service. Human Nutrition Research Division - 2113 downloads
- McKinley, William 1843-1901 2023 downloads
- United States. War Department. General Staff - 1907 downloads
- United States. Bureau of the Census - 1896 downloads
- United States. Agricultural Research Service. Consumer and Food Economics Research Division - 1855 downloads
- United States. Council of National Defense. Highways Transport Committee - 1833 downloads
- Museum of History and Technology (U.S.) - 1819 downloads
- United States. Federal Bureau of Investigation - 1699 downloads
- United States. National Park Service. Division of Publications - 1669 downloads
- United States. Army. Signal Corps - 1624 downloads
- United States. Constitutional Convention (1787) - 1622 downloads
- United States. Department of the Army. Office of Military History - 1609 downloads
- United States. Army. Corps of Engineers. Manhattan District - 1603 downloads
- United States. Public Health Service - 1555 downloads
- Reagan, Ronald 1911-2004 1454 downloads
- Bush, George W. (George Walker) 1946- 1418 downloads