At the sale today GW paid George Mason £100 for the 100 acres of land Mason had previously agreed to sell him (General Ledger A description begins General Ledger A, 1750–1772. Library of Congress, George Washington Papers, Series 5, Financial Papers. description ends , folio 61). Mason had sent GW the deed for this tract ten days earlier, and it was registered in the Fairfax County court 22 Nov. 1769, being proved by Robert Hanson Harrison, William Carlin, and Humphrey Peake (Mason to GW, 14 Oct. 1769, NN: Washington Collection; Fairfax County Order Book for 1768–70, 256, Vi Microfilm).