Authors: United States. (sorted by release date)
- United States. Congress. House. Committee on Un-American Activities - Jan 18, 2018
- United States. National Aeronautics and Space Administration - Dec 18, 2017
- United States. War Department. General Staff - Sep 24, 2017
- United States. Government Printing Office - Sep 20, 2017
- United States. Army. Signal Corps - Jul 10, 2017
- Jet Propulsion Laboratory (U.S.) - Apr 21, 2017
- United States. Congress - Mar 12, 2017
- McBride, James 1788-1859 Mar 9, 2017
- Writers' Program of the Work Projects Administration in the State of Arizona - Sep 23, 2016
- Washington, George 1732-1799 Jun 23, 2016
- United States. Department of the Army - May 24, 2015
- United States. Coast Guard - Apr 1, 2015
- Geological Survey (U.S.) - Jan 29, 2015
- United States. Foreign Operations Administration - Nov 23, 2014
- Federal Writers' Project of the Works Progress Administration for the State of North Dakota - Aug 23, 2014
- United States. Bureau of Naval Personnel - Jun 6, 2014
- Adams, John 1735-1826 Mar 25, 2014
- Harrison, Benjamin 1833-1901 Jan 16, 2014
- United States. Bureau of Education - Jan 7, 2014
- United States. Congress. Joint Committee on the Conduct of the War - Jan 6, 2013
- United States. Constitutional Convention (1787) - Oct 17, 2012
- Madison, James 1751-1836 Oct 17, 2012
- Museum of History and Technology (U.S.) - Sep 17, 2012
- United States. Congress. Senate. Committee on Patents - Aug 29, 2012
- United States. Congress. House. Committee on Patents - Aug 29, 2012
