Authors: United States.
- Adams, John 1735-1826 2150 downloads
- Coolidge, Calvin 1872-1933 2089 downloads
- Girl Scouts of the United States of America - 1984 downloads
- United States. Army. American Expeditionary Forces - 1934 downloads
- United States. Congress - 1888 downloads
- Washington, George 1732-1799 1842 downloads
- Kennedy, John F. (John Fitzgerald) 1917-1963 1821 downloads
- Museum of History and Technology (U.S.) - 1773 downloads
- United States. Council of National Defense. Highways Transport Committee - 1542 downloads
- United States. Bureau of Animal Industry - 1538 downloads
- United States. Agricultural Research Service. Human Nutrition Research Division - 1512 downloads
- McKinley, William 1843-1901 1464 downloads
- United States. Department of the Army. Office of Military History - 1381 downloads
- United States. Bureau of the Census - 1321 downloads
- United States. Agricultural Research Service. Consumer and Food Economics Research Division - 1208 downloads
- United States. Federal Bureau of Investigation - 1188 downloads
- United States. Army. Corps of Engineers. Manhattan District - 1165 downloads
- United States. Constitutional Convention (1787) - 1163 downloads
- Geological Survey (U.S.) - 1158 downloads
- United States. National Park Service. Division of Publications - 1149 downloads
- United States. Army. Signal Corps - 1008 downloads
- United States. National Conservation Congress - 992 downloads
- United States. Public Health Service - 893 downloads
- United States. Congress. House. Committee on Un-American Activities - 889 downloads
- United States Food Administration - 884 downloads
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