1From Benjamin Franklin to Benjamin Rush, 22 March 1768 (Franklin Papers)
ALS : Dartmouth College Library It has been a great Pleasure to me to hear occasionally from...
2To Benjamin Franklin from Benjamin Rush, 14 October 1770 (Franklin Papers)
ALS : University of Pennsylvania The many Advantages which I derived from your Friendship Whilst...
3From Benjamin Franklin to Benjamin Rush, 22 August 1772 (Franklin Papers)
ALS : Yale University Library; letterbook draft: American Philosophical Society I am favoured...
4From Benjamin Franklin to Benjamin Rush, 14 February 1773 (Franklin Papers)
ALS : University of Pennsylvania Library; letterbook draft: Library of Congress In a Box to Mr....
5To Benjamin Franklin from Benjamin Rush, 1 May 1773 (Franklin Papers)
ALS : American Philosophical Society I am much Obliged to you for Dr. Priestley’s Experiments....
6From Benjamin Franklin to Benjamin Rush, 14 July 1773 (Franklin Papers)
ALS : Yale University Library; letterbook draft: Library of Congress I received your Favour of...
7To Benjamin Franklin from Benjamin Rush, [after 15 September 1773] (Franklin Papers)
AL (incomplete): American Philosophical Society I acknowledge myself much indebted to you for the...
8From Benjamin Franklin to Benjamin Rush, 22 July 1774 (Franklin Papers)
ALS : Yale University Library; letterbook draft: American Philosophical Society I received your...
9From Benjamin Franklin to Benjamin Rush, 25 July 1774 (Franklin Papers)
ALS : American Philosophical Society I have already written to you as a Friend by this...
10From Benjamin Franklin to Benjamin Rush, 7 January 1775 (Franklin Papers)
ALS : Independence National Historical Park, Philadelphia This letter of introduction is the...