1To Benjamin Franklin from Thomas Gilpin, 10 October 1769 (Franklin Papers)
Reprinted from Joshua Gilpin, A Memoir of the Rise, Progress, and Present State of the Chesapeake...
2To Benjamin Franklin from Thomas Gilpin, 16 May 1769 (Franklin Papers)
Reprinted from “Memoir of Thomas Gilpin,” Pennsylvania Magazine of History and Biography , XLIX...
3To Benjamin Franklin from Thomas Gilpin, 6 February 1769 (Franklin Papers)
Extracts: reprinted from “Memoir of Thomas Gilpin,” Pennsylvania Magazine of History and...
4To Benjamin Franklin from Thomas Gilpin, 29 January 1769 (Franklin Papers)
Extract: reprinted from “Memoir of Thomas Gilpin,” Pennsylvania Magazine of History and Biography...