John C. Calhoun's membership invitation to the Royal Society of Northern Antiquities
Clemson University Libraries On back: [Tillman Hall attic find] [March 1980] [Request that John C. Calhoun accept membership in the Royal Society of Northern Antiquities, Copenhagen, May 19, 1840]
John C. Calhoun's election to fellow of the Royal Society of Northern Antiquities
Clemson University Libraries On back: [Tillman Hall attic find] [March 1980] [Notification that John C. Calhoun has been elected a fellow of the Royal Society of Northern Antiquities, Copenhagen, October 28, 1841]