Michael, I found this entry last night at the Library of Congress site for Richard Foote and Margaret Foote -- you may already have this information. Sorry I do not have a web link.
I descend through Thomas Garrett/Margaret Foote via Hannah Garrett Burson and also Benjamin Burson.
The George Washington Papers at the Library of Congress, 1741-1799 ________________________________________ Item 1 of 114 ________________________________________ The Diaries of George Washington. Vol. 6. Donald Jackson, and Dorothy Twohig, ed. The Papers of George Washington. Charlottesville: University Press of Virginia, 1979. October 1797
________________________________________ 1. Began raining in the Night and contind. to do so, more or less, until Noon--when the Wind got to the Westward & cleard--Mer. 63.
2. Clear, warm & pleasant. Mer. at 66. Mr. Carter & Mr. Fitzhugh went away & Mr. Washington 8: Mr. Foot came to dinr. & returned afterwards.
Mr. Washington undoubtedly is Lawrence Washington (1740--1799) Of nearby Belmont, brother of GW's cousin and wartime manager, Lund Washington (see entries for lo Mar. and 27 July 1785). MR. FOOT: probably William Hayward Foote, usually called Hayward Foote. He was the son of Richard Foote (d. 1779) and Margaret Foote and was the nephew of both Catherine Foote Washington, Lawrence's wife, and Elizabeth Foote Washington, the widow of Lund Washington. Elizabeth Washington called Hayward Foote her "adopted son"; he evidently lived with her and helped her manage the farm after Lund's death (Fairfax County Wills, Book K-1, Vi Microfilm; Lund Washington's Account Book, MdAN).