Colonel David Gardiner (1688-1745) first met Doddridge in 1739, and he became his student at Northampton in the class of 1741 and close friend and correspondent for the remainder of his short life. He and his wife, Frances, subscribed to Volume 2 of Doddridge's Family Expositor in 1740. His duties called him to fight in the Jacobite Rebellion of 1745, during which he lost his life, a great loss to Doddridge, who proceeded to immortalize Gardiner in his popular work, The Life of Col. James Gardiner: who was Slain at the Battle of Prestopans, September 21, 1745 (1747).