21From Benjamin Franklin to David Hartley, 5 February 1778 (Franklin Papers)
Transcript: Library of Congress I am exceedingly obliged by your interesting yourself so warmly...
22From Benjamin Franklin to David Hartley, 5 April 1782 (Franklin Papers)
Copy: Library of Congress I wrote a few Lines to you the 31st. past, and promised to write more...
23From Benjamin Franklin to David Hartley, 3 October 1775: extract (Franklin Papers)
Extract printed in Benjamin Vaughan, ed., Political, Miscellaneous, and Philosophical Pieces...
24From Benjamin Franklin to [David Hartley], 3 February 1779 (Franklin Papers)
Copy: Library of Congress I have just received your favour of the 23d. past, in which you...
25From Benjamin Franklin to David Hartley, 12 July 1779 (Franklin Papers)
LS , copy, and transcript: Library of Congress I am glad to hear that another Cargo of Prisoners...
26From Benjamin Franklin to David Hartley, 20 October 1778 (Franklin Papers)
ALS : Library of Congress; copies: National Maritime Museum, Public Record Office; transcript:...
27From Benjamin Franklin to David Hartley, 26 October 1778 (Franklin Papers)
Transcript: Library of Congress I received yours without Date, containing an old Scotch Sonnet...
28From Benjamin Franklin to David Hartley, 30 June 1781 (Franklin Papers)
LS and copy: Library of Congress I received, my dear Friends, kind Letter of the 15th. Instant,...
29From Benjamin Franklin to David Hartley, 28 November 1782 (Franklin Papers)
ALS : D.A.F.H.H. Hartley Russell (1955) on deposit in the Berkshire County Record Office I...
30From Benjamin Franklin to David Hartley, 15 December 1781 (Franklin Papers)
Reprinted in William Temple Franklin, ed., Memoirs of the Life and Writings of Benjamin Franklin...