1To Benjamin Franklin from Cuming & Macarty, [before 12 October 1782] (Franklin Papers)
ALS : American Philosophical Society Permit us to request your Excelleny to Transmitt us the...
2To Benjamin Franklin from Cuming & Macarty, 1 November 1782 (Franklin Papers)
ALS : American Philosophical Society We are honour’d with your Letter of 26th. October Covering...