41To Benjamin Franklin from Isaac Norris, 15 June 1758 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania The Repeatd Exemptions of the Proprietary...
42To Benjamin Franklin from Isaac Norris, 25 July 1758 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania If I Could hear the News by this Days post, I...
43To Benjamin Franklin from Isaac Norris, 17 October 1757 (Franklin Papers)
ALS : American Philosophical Society; also letterbook copy: Historical Society of Pennsylvania I...
44To Benjamin Franklin from Isaac Norris, 19 October 1761 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania I find my Last of the 30th of September mist...
45To Benjamin Franklin from Isaac Norris, 24 August 1760 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania It is some Time since I wrote last, which I...
46To Benjamin Franklin from Isaac Norris, 28 July 1760 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania It is some time since I wrote—my last being...
47To Benjamin Franklin from Isaac Norris, 1 March 1760 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania I wrote on the 27th of February last by a...
48To Benjamin Franklin from Isaac Norris, 31 July 1759 (Franklin Papers)
ALS : American Philosophical Society; letterbook copy: Historical Society of Pennsylvania; copy:...
49To Benjamin Franklin from Isaac Norris, 17 March 1759 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania I now enclose Second Bills of Exchange...
50To Benjamin Franklin from Isaac Norris, 22 August 1759 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania; copy (first part only): American...