1From Benjamin Franklin to David Hartley, 17 September 1782 (Franklin Papers)
LS : Yale University Library Since those acknowledg’d in my last, I have received your Several...
2From 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...