To George Washington from Maj. Gen. John Sullivan, 19 September 1777 [letter not found]
Letter not found: from Maj. Gen. John Sullivan, 19 Sept. 1777. GW in his letter to Sullivan of 20 Sept. refers to “your favr, and request of yesterday.”
“To George Washington from Maj. Gen. John Sullivan, 19 September 1777 [letter not found],” Founders Online, National Archives, https://founders.archives.gov/documents/Washington/03-11-02-0273. [Original source: The Papers of George Washington, Revolutionary War Series, vol. 11, 19 August 1777 – 25 October 1777, ed. Philander D. Chase and Edward G. Lengel. Charlottesville: University Press of Virginia, 2001, p. 272.]