To George Washington from John Forbes, 18 November 1758 [letter not found]
Letter not found: from John Forbes, 18 Nov. 1758. Later on the same day, GW wrote to Forbes: “I had wrote thus far, when your favour of this morning came to hand.”
“To George Washington from John Forbes, 18 November 1758 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/02-06-02-0122. [Original source: The Papers of George Washington, Colonial Series, vol. 6, 4 September 1758 – 26 December 1760, ed. W. W. Abbot. Charlottesville: University Press of Virginia, 1988, p. 141.]