1To Benjamin Franklin from John MacMahon, 13 February 1783 (Franklin Papers)
AL : American Philosophical Society Doctor Mac Mahon presents his sincere respects to Dr....
2To Benjamin Franklin from John MacMahon and the Chevalier de Kéralio, 26 March 1781 (Franklin Papers)
AL : American Philosophical Society L’Excellent docteur Mac-mahon et Le chr. de Keralio...
3To Benjamin Franklin from John MacMahon, 1 October 1777 (Franklin Papers)
ALS : American Philosophical Society I make bold to recommend to you the bearer, who is a...
4To Benjamin Franklin from John MacMahon, 25 March 1783 (Franklin Papers)
ALS : American Philosophical Society The Lady who intends to wait upon you with this letter is...
5To Benjamin Franklin from John MacMahon, 5 January 1778 (Franklin Papers)
ALS : American Philosophical Society Here is an invitation from the Dutchesses De Mortemart for...
6To Benjamin Franklin from John MacMahon, 11 February 1784 (Franklin Papers)
AL : American Philosophical Society Doctor MacMahon presents his best respects to the Honourable...
7To Benjamin Franklin from John MacMahon, 9 January 1778 (Franklin Papers)
ALS : American Philosophical Society Here is another paper of news M. De Keralio, who gives you...
8To Benjamin Franklin from John MacMahon: Prescription and Directions, 14 September 1782 (Franklin Papers)
(I) Press copy of ADS : Library of Congress; (II) ALS and press copy of ALS : Library of Congress...
9To Benjamin Franklin from John MacMahon, 21 January 1778 (Franklin Papers)
ALS : American Philosophical Society I hope you have not forgot the promise you were so kind as...
10To Benjamin Franklin from John MacMahon, 4 January 1778 (Franklin Papers)
ALS : American Philosophical Society Chevalier De Keralio who had the pleasure of dining with you...