Americus Symmes (1811–96)
American farmer and populariser of the Symmes theory of a hollow earth. Son of John Cleve Symmes (1780–1829). Born in Bellefontaine, Missouri; moved to Kentucky in 1850.
Letter from J. C. Symmes, 6 February 1874
McBride 1869–71
Nelson and Runk eds. 1894.