1William Robertson to William Strahan, 18 February 1765 (Franklin Papers)
Copy: Yale University Library Just now Mr. Balfour delivered to me your Letter of the 14th. and...
2To Benjamin Franklin from William Robertson, 1 April 1765 (Franklin Papers)
Copy: Yale University Library I had the honour of your Letter of March 4th. When our Friend Mr....
3To Benjamin Franklin from William Robertson, 12 December 1768 (Franklin Papers)
ALS : American Philosophical Society I was favoured with your letter of the 26th recommending Sir...
4To Benjamin Franklin from William Robertson, 30 January 1770 (Franklin Papers)
ALS : Princeton University Library By some unlucky accident I could find no person to take the...
5To Benjamin Franklin from William Robertson, 4 August 1783 (Franklin Papers)
ALS : American Philosophical Society My eldest Son will have the honour of presenting this letter...