To George Washington from Alexander Spotswood, 23 Aug. 1779 [letter not found]
Letter not found: from Alexander Spotswood, 23 Aug. 1779. On 19 Sept., GW wrote Spotswood: “I have been just favoured with your Letter of the 23d of August.”
“To George Washington from Alexander Spotswood, 23 Aug. 1779 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/03-22-02-1046. [Original source: The Papers of George Washington, Revolutionary War Series, vol. 22, 1 August–21 October 1779, ed. Benjamin L. Huggins. Charlottesville: University of Virginia Press, 2013, p. 232.]