11Francis Coffyn to the American Commissioners, 23 March 1778 (Franklin Papers)
ALS : American Philosophical Society Referring to the letter I had the honnor of writing to you...
12Francis Coffyn to the American Commissioners, 13 April 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, April 13, 1778: I enclose a copy of my letter of...
13Francis Coffyn to the American Commissioners, 23 May 1778 (Franklin Papers)
ALS : Harvard University Library I take the liberty to enclose a Copy of the Memoire I made last...
14Francis Coffyn to the American Commissioners, 18 June 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, June 18, 1778: I received your letter of the 10th...
15Francis Coffyn to the American Commissioners, 19 June 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, June 19, 1778: A brig that arrived last night...
16Francis Coffyn to the American Commissioners, 30 June 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, June 30, 1778: Six Russian ships of the line are...
17Francis Coffyn to the American Commissioners, 7 July 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, July 7, 1778: I refer you to my letter of the 5th....
18Francis Coffyn to the American Commissioners, 9 July 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Dunkirk, July 9, 1778: I refer you to my letter of...
19Francis Coffyn to the American Commissioners, 10 July 1778 (Franklin Papers)
ALS : American Philosophical Society In the letter I had the honor of writing to you yesterday by...
20To Benjamin Franklin from Francis Coffyn, 16 June 1779 (Franklin Papers)
ALS : American Philosophical Society I duly receiv’d the honnor of Mr. H. I. Franklin’s letter...