1Francis Coffyn to the American Commissioners, 20 January 1778 (Franklin Papers)
ALS : American Philosophical Society I had the honnor to address you my last the 15th. inst....
2Francis Coffyn to the American Commissioners, 27 January 1778 (Franklin Papers)
ALS : American Philosophical Society The letter I had the honnor of writing to you the 20th....
3Francis Coffyn to the American Commissioners, 2 March 1778 (Franklin Papers)
ALS : American Philosophical Society I had the honnor of writing to you the 14th. ultimo by Mr....