To George Washington from Robert Cary & Co., 13 November 1770 [letter not found]
Letter not found: from Robert Cary & Co., 13 Nov. 1770. On 20 July 1771 GW wrote to them: “So much in answer to that part of your Letter of the 13th of Novr. . . .”
“To George Washington from Robert Cary & Co., 13 November 1770 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/02-08-02-0266. [Original source: The Papers of George Washington, Colonial Series, vol. 8, 24 June 1767 – 25 December 1771, ed. W. W. Abbot and Dorothy Twohig. Charlottesville: University Press of Virginia, 1993, p. 396.]