Clemson, Thomas Green, 1807-1918
Clemson writes to Calhoun about progress at the O'Bar gold mine.
Clemson, Thomas Green, "Letter, June 23, 1842, from Thomas Green Clemson to John C Calhoun" (1842). Thomas Green Clemson Papers, Mss 2. 135.
Clemson University Libraries
Clemson University Works. http://purl.clemson.edu/culrights