Overview: Samuel Langdon (1723-1797) was a schoolmaster, army chaplain, pastor of the First Church in Portsmouth, New Hampshire, from 1747 to 1774, and thirteenth president of Harvard College, serving from 1774 to 1780. This collection contains a small number of letters written by Langdon, a few of Langdon’s sermons, and a few documents pertaining to other aspects of Langdon’s life.