Mr. Flint may be John, John Jr., or Thomas Flint of Frederick County, Md. John Flint was registrar of Prince George’s Parish, and Thomas Flint kept a school in Frederick County. A Pennsylvania traveler recorded having been to “Flints on Potomak abot. 12 Miles above Fort Frederick, civil people” (kenny description begins John W. Jordan, ed. “Journal of James Kenny, 1761–1763.” Pennsylvania Magazine of History and Biography 37 (1913): 152–201. description ends , 200). This location was at the mouth of the Monocacy River and midway between Mount Vernon and the Pennsylvania line.