To George Washington from Samuel Washington, 31 July 1780 [letter not found]
Letter not found: from Samuel Washington, 31 July 1780. On 31 Aug., GW wrote Washington: “Your letter of the 31st Ulto came to my hands by the last Post.”
“To George Washington from Samuel Washington, 31 July 1780 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/03-27-02-0332. [Original source: The Papers of George Washington, Revolutionary War Series, vol. 27, 5 July–27 August 1780, ed. Benjamin L. Huggins. Charlottesville: University of Virginia Press, 2019, p. 379.]