31To Benjamin Franklin from William Strahan, 31 July 1780 (Franklin Papers)
ALS : American Philosophical Society The young Gentleman who will have the Honour to put this...
32To Benjamin Franklin from William Strahan, 27 May 1782 (Franklin Papers)
ALS : American Philosophical Society; two copies: Yale University Library I was favoured with...
33To Benjamin Franklin from William Strahan, 1 February 1784 (Franklin Papers)
ALS : American Philosophical Society I wrote to you in August last in answer to your very kind...
34To Benjamin Franklin from William Strahan, 26 August 1784 (Franklin Papers)
ALS : American Philosophical Society This will be delivered into your Hands by my worthy Friend...
35To Benjamin Franklin from William Strahan, 21 November 1784 (Franklin Papers)
ALS : American Philosophical Society With great Satisfaction I received your most acceptable...