William Carr (d. 1791), a Dumfries merchant, dealt in wheat and flour. He had been a trustee of the town since 1761 and in 1765 served as a commissioner to divide Fairfax Parish from Truro Parish (Carr to GW, 17 Dec. 1770, DLC:GW; hening description begins William Waller Hening, ed. The Statutes at Large; Being a Collection of All the Laws of Virginia, from the First Session of the Legislature, in the Year 1619. 13 vols. 1819–23. Reprint. Charlottesville, Va., 1969. description ends , 7:424–28, 8:157–59).