22. Young Countiss & black Mare Covered by Alexanders Ho[rse].
Alexander is probably Robert Alexander, son of Col. Gerard Alexander and his wife Mary Dent Alexander. It is probable that GW sent some of his mares to Alexander’s nearby plantation to be bred, possibly to an English stallion which he had previously sold to Alexander (LEDGER A description begins Manuscript Ledger Book 1, 1750-72, in George Washington Papers, Library of Congress. description ends , 96).