- University of Virginia American Studies. "Forgotten Origins: Uncle Sam." http://xroads.virginia.edu/~cap/sam/sam.htm. Accessed 6 Aug 2011.
- Hines, Judith D. The New Book of Knowledge, Vol. 13 (N). "Nast, Thomas (1840-1902)." Grolier Publishing Company, Inc., 2002.
- Image: Uncle Sam Wants You by James Montgomery Flagg under Public Domain.