“To George Washington from Francis Willis, 1 September 1774 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/02-10-02-0103. [Original source: The Papers of George Washington, Colonial Series, vol. 10, 21 March 1774 – 15 June 1775, ed. W. W. Abbot and Dorothy Twohig. Charlottesville: University Press of Virginia, 1995, p. 160.]