11To George Washington from William Augustine Washington, 30 August 1799 [letter not found] (Washington Papers)
Letter not found: from William Augustine Washington, 30 Aug. 1799. On 7 Oct. GW wrote William Augustine Washington : “Strange as it may seem, it is nevertheless true, that your letter of the 30th of August never got to my hands until the 4th instant.”
12To George Washington from William Augustine Washington, 15 September 1799 [letter not found] (Washington Papers)
Letter not found: from William Augustine Washington, 15 Sept. 1799. On 22 Sept. GW wrote his nephew: “Your letter of the 15th instt from New Post, has been received.”
13To George Washington from William Augustine Washington, 8 October 1799 [letter not found] (Washington Papers)
Letter not found: from William Augustine Washington, 8 Oct. 1799. On 29 Oct. GW wrote his nephew : “Your letter of the 8th instant has been duly received.”