1To Benjamin Franklin from Oliver Pollock: Two Letters, 29 April 1778 and 1 May 1778 (Franklin Papers)
(I) and (II) ALS : American Philosophical Society Having the Honour of being appointed agent for...
2To Benjamin Franklin from Oliver Pollock, 10 April 1779 (Franklin Papers)
ALS : American Philosophical Society Annexed is Copy of what I had the honor to write you the...