1To George Washington from Col. Thomas Proctor, 18 March 1778 [letter not found] (Washington Papers)
Letter not found: from Col. Thomas Proctor, Capt. Winthrop Sargent, Capt. John Doughty, and Capt. Thomas Clark, 18 Mar. 1778. On 23 Mar., GW wrote Proctor, Sargent, Doughty, and Clark , “Business has prevented my answering yours of the 18th.”