1To Benjamin Franklin from Patrick Dowlin et al., 7 December 1779 (Franklin Papers)
LS : American Philosophical Society We beg Leave to Express to your Excellency in the Warmest...
2To Benjamin Franklin from Patrick Dowlin, 27 January 1780 (Franklin Papers)
ALS : American Philosophical Society I left Dunkirk the 21st. of last Month, upon my Cruize all...