6. Rid to Muddy hole and Doeg Run after Doctr. Rumney went away. When I returnd found Mr. Wm. Lee & Doctr. Lee here.
Arthur Lee (1740–1792) was the youngest of the six surviving sons of Thomas Lee (1690–1750), builder of Stratford Hall, Westmoreland County, and his wife, Hannah Ludwell Lee (1701–1749/50). He attended Eton and the University of Edinburgh, where he took a medical degree in 1764, and then returned to Virginia to practice medicine in Williamsburg. Arthur and his elder brother William (1739–1795) were now preparing for a visit to England which would see Arthur take up the study of law and William enter the tobacco trade in London (lee  description begins Cazenove Gardner Lee, Jr. Lee Chronicle: Studies of the Early Generations of the Lees of Virginia. Edited by Dorothy Mills Parker. New York, 1957. description ends , 195). During this visit to Mount Vernon the brothers probably discussed with GW the prospects for the Mississippi Land Company, in which both were deeply involved.