1From Benjamin Franklin to John Adams, 21 April 1780 (Franklin Papers)
LS : Massachusetts Historical Society; copy: Library of Congress The Letter your Excellency did...
Two ALS : American Philosophical Society Since my last of the 14th. of Jany. the following Setts...
3From Benjamin Franklin to Richard Bache, 24 May 1780 (Franklin Papers)
ALS : New-York Historical Society Messieurs Galatin & De Serres, two young Gentlemen of Geneva,...
4From Benjamin Franklin to Richard Bache, 3 June 1780 (Franklin Papers)
Copy: Library of Congress I seldom hear from you or Sally, but I have lately had the satisfaction...
5From Benjamin Franklin to Richard Bache, 27 June 1780 (Franklin Papers)
LS : Mrs. Richard R. Wood, Wawa, Pennsylvania (1957) I have just received yours of may 2. with...
6From Benjamin Franklin to Sarah Bache, 27 June 1780[–12 August 1780] (Franklin Papers)
LS : Mrs. Martin M. Kendig, Chicago, Illinois (1955) I received your pleasing Letters of Nov. 14....
7From Benjamin Franklin to Sarah Bache, 16 March 1780 (Franklin Papers)
ALS : American Philosophical Society I received your kind Letters of Sept. 14. and 25th. You...
8From Benjamin Franklin to Edward Bancroft, 4 March 1780 (Franklin Papers)
Copy: Library of Congress You will see by the enclos’d that a Demand is made of replacing the...
9From Benjamin Franklin to Paul Bentalou, 15 May 1780 (Franklin Papers)
Copy: Library of Congress The Buckskin not belonging to the United States, but to private...
10From Benjamin Franklin to John Bondfield, 19 March 1780 (Franklin Papers)
Copy: Library of Congress I received yours offering the Govr. Livingston and mary fearon for the...
11From Benjamin Franklin to Thomas Bond, 16 March 1780 (Franklin Papers)
Reprinted from William Temple Franklin, ed., The Private Correspondence of Benjamin Franklin...
12From Benjamin Franklin to Cabanis, [30 June 1780] (Franklin Papers)
Reprinted from John Bigelow, The Life of Benjamin Franklin, Written by Himself (5th ed.; 3 vols.,...
13From Benjamin Franklin to ——— Caccia, 8 March 1780 (Franklin Papers)
ALS : Albert M. Greenfield, Philadelphia, Pennsylvania (1958) I unfortunately mislaid M....
14From Benjamin Franklin to William Carmichael, 17 June 1780 (Franklin Papers)
Copy: Library of Congress Your favour of the 22 past came duly to Hand. Sir J.D. has been here...
15From Benjamin Franklin to William Carmichael, 31 March[–7 April 1780] (Franklin Papers)
Copies (two): Library of Congress I received by M. Gerard your kind Letter written at...
16From Benjamin Franklin to Samuel Cooper, 16 March 1780 (Franklin Papers)
LS : Henry E. Huntington Library I received your kind Favour by Capt. Chavagnes, which I...
17From Benjamin Franklin to Delleville, 15 April 1780 (Franklin Papers)
Copy: Library of Congress I received the Letter you did me the honour of writing to me the 10th....
18From Benjamin Franklin to Thomas Digges, 25 June 1780 (Franklin Papers)
Copy: Library of Congress I received yours inclosing a very obliging Letter from Mr. President...
19From Benjamin Franklin to Thomas Digges, 15 March 1780 (Franklin Papers)
Copy: Library of Congress In compliance with your Recommendation, which I very much respect, I...
20From Benjamin Franklin to John Diot and Co., 23 May 1780 (Franklin Papers)
Copy: Library of Congress I received the honour of yours (without date) but enclosing three...
21From Benjamin Franklin to [Dumas], 31 March 1780 (Franklin Papers)
ALS : Boston Public Library; transcript: National Archives I wrote to you yesterday relating to...
22From Benjamin Franklin to Dumas, 5 June 1780 (Franklin Papers)
LS : American Philosophical Society; copy: Library of Congress; transcript: National Archives The...
23From Benjamin Franklin to Dumas, 23 April 1780 (Franklin Papers)
Copy: Library of Congress; transcript: National Archives I am Much pleased with the Account you...
24From Benjamin Franklin to Dumas: Two Letters, 29 March 1780 (Franklin Papers)
(I) and (II) Copy: Library of Congress; transcript: National Archives I did receive the Letter...
25From Benjamin Franklin to Dumas: Two Letters, 22 June 1780 (Franklin Papers)
(I) and (II) copies: Library of Congress, National Archives I received duly yours of May 23. June...
26From Benjamin Franklin to Octavie Guichard Durey de Meinières, 23 April 1780 (Franklin Papers)
AL : American Philosophical Society It is certain that Mr. Franklin has promised Madame Helvetius...
27From Benjamin Franklin to Duvivier, 4 May 1780 (Franklin Papers)
AL (draft): American Philosophical Society J’ai montré les Epreuves de la Medaille à plusieurs...
28From Benjamin Franklin to the Eastern Navy Board, 15 March 1780 (Franklin Papers)
Copy: Library of Congress I acquainted you in a former Letter, that there were great...
29From Benjamin Franklin to Fizeaux, Grand & Cie., 23 April 1780 (Franklin Papers)
Copy: Library of Congress I received your respected favours of the Instant with your Acct of...
30From Benjamin Franklin to John Fothergill, 19 June 1780 (Franklin Papers)
Reprinted from William Temple Franklin, ed., Private Correspondence of Benjamin Franklin (2...