31To Benjamin Franklin from David Hartley: Two Letters, [4 October 1778] (Franklin Papers)
(I) ALS : American Philosophical Society; transcript: Library of Congress (II) ALS : American...
32To Benjamin Franklin from David Hartley, 2 March 1779 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress Yours of 22d of february...
33To Benjamin Franklin from David Hartley, 26 September 1781 (Franklin Papers)
ALS : American Philosophical Society Having an opportunity of a conveyance to you, I write one...
34To Benjamin Franklin from David Hartley, 1 June 1784 (Franklin Papers)
Copies: National Archives (London), William L. Clements Library; transcript: National Archives I...
35To Benjamin Franklin from David Hartley, 1 December 1784 (Franklin Papers)
ALS : Charles E. Feinberg, Detroit, Michigan (1957); copy: William L. Clements Library I write to...
36To Benjamin Franklin from David Hartley, 27 March 1780 (Franklin Papers)
ALS : American Philosophical Society I send by this date another letter with enclosures relating...
37To Benjamin Franklin from David Hartley, 4 August 1784 (Franklin Papers)
ALS : Library of Congress I have not recd any letters from England—but I hear that a continuation...
38To Benjamin Franklin from David Hartley, 5 July 1779 (Franklin Papers)
Transcript: Library of Congress I send you for fear of accidents copies of two letters wch I have...
39To Benjamin Franklin from [David Hartley], 14 November 1775 (Franklin Papers)
ALS : Public Record Office I send you a copy of the petition from the County of Berks for lenient...
40To Benjamin Franklin from David Hartley, 25 October 1783 (Franklin Papers)
ALS : Library of Congress As short days & winter weather approach I have sent you the 12 yards of...