1. Knox’s letter to Israel Chapin, Sr., of this date, which has not been identified, was written in response to the instructions contained in GW’s letter to Knox of 4 April. GW wrote Knox later this day that “The Letter appears to me to be very proper, but Genl Chapins negotiations with the Six Nations ought to be apart from British Agents or Spies—I mean with the chiefs—otherwise they can come to nothing” (ALS, NNGL: Knox Papers; Df, DLC:GW; LB, DLC:GW). On the unsuccessful efforts by the War Department and its agents to bribe the Mohawk chief Joseph Brant, see Kelsay, Brant description begins Isabel Thompson Kelsay. Joseph Brant, 1743–1807: Man of Two Worlds. Syracuse, N.Y., 1984. description ends , 472, and Cruikshank, Simcoe Papers description begins E. A. Cruikshank, ed. The Correspondence of Lieut. Governor John Graves Simcoe, with Allied Documents Relating to His Administration of the Government of Upper Canada. 5 vols. Toronto, 1923–31. description ends , 2:116. On Charles Williamson’s presence in Philadelphia, see Knox to GW, 4 April.