1To Benjamin Franklin from Watson & Cossoul, 20 May 1781 (Franklin Papers)
ALS : American Philosophical Society We duly rec’d your favr. of the 16th. inst. directed to our...
2To Benjamin Franklin from Watson & Cossoul, 27 November 1781 (Franklin Papers)
ALS : American Philosophical Society Si nous étions surs que Ne [Notre?] sr Watson fut encore à...
3To Benjamin Franklin from Watson & Cossoul, 2 February 1782 (Franklin Papers)
ALS : American Philosophical Society We were duly honoured with your favr. of the 2 Decemr., &...
4To Benjamin Franklin from Watson & Cossoul, 14 February 1782 (Franklin Papers)
ALS : American Philosophical Society We did ourselves the honour to write your Excellency, the...
5To Benjamin Franklin from Watson & Cossoul, 23 July 1782 (Franklin Papers)
LS : American Philosophical Society Being informed by Majr. Shurburn, that your Excellency, had...
6To Benjamin Franklin from Watson & Cossoul, 1 August 1782 (Franklin Papers)
ALS : American Philosophical Society We are extreamly mortify’d that the circumstances of our...
7To Benjamin Franklin from Watson & Cossoul, 20 August 1782 (Franklin Papers)
LS : Historical Society of Pennsylvania By request of Mr. Laurens we have prevailed on Capt....