Wilson, Douglas L., ed; Davis, Rodney O., ed. 'Register of Informants' in 'Herndon's Informants: Letters, Interviews, and Statements About Abraham Lincoln' . Urbana: University of Illinois Press, 1998. [format: book], [genre: history]. Permission: University of Illinois Press
Persistent link to this document: http://lincoln.lib.niu.edu/file.php?file=herndon737.html

A native of Vermont, Duncan moved west in the 1820s, receiving his medical degree in Missouri. He arrived in New Salem about the same time as AL and lived at James Rutledge's tavern, where he set up his medical practice. Duncan left in 1834 and a short time later married a New Salem girl, Nancy Burner. (Knox County Republican, September 20, 1885)