“To George Washington from Maj. Gen. Alexander McDougall, 19 June 1779 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/03-21-02-1031. [Original source: The Papers of George Washington, Revolutionary War Series, vol. 21, 1 June–31 July 1779, ed. William M. Ferraro. Charlottesville: University of Virginia Press, 2012, p. 194.]