This collection includes four letters written by John C. Calhoun between 1818-1834, including two official communications signed by him when he was Secretary of War in the James Monroe administration, dealing with Indian affairs. Those letters are dated September 11, 1818 and August 20, 1820. A letter dated August 24, 1831 to Francis W. Pickens alludes to Calhoun's reaction to his Fort Hill speech and discusses the upcoming presidential election. The June 20, 1834 letter to Col. Andrew Pickens contains comments on Congress and cabinet changes.