1To Benjamin Franklin from Benjamin Sowden, 21 April 1777 (Franklin Papers)
ALS : American Philosophical Society As a proper apology for this intrusion, permit me to inform...
2To Benjamin Franklin from Benjamin Sowden, 7 June 1777 (Franklin Papers)
ALS : American Philosophical Society In consequence of Your very obliging permission, I transmit...
3To Benjamin Franklin from [Benjamin Sowden], 25 August 1777 (Franklin Papers)
AL : Harvard University Library; two partial copies: American Philosophical Society I seize the...
4To Benjamin Franklin from [Benjamin Sowden], [1 September 1777] (Franklin Papers)
ALS : American Philosophical Society Last post I had the honour to write and forward you a Letter...
5To Benjamin Franklin from [Benjamin Sowden], 26 September 1777 (Franklin Papers)
AL : American Philosophical Society Mr. Vincent, The Young Gentleman who formerly lived with me,...
6To Benjamin Franklin from [Benjamin Sowden], 16 October 1777 (Franklin Papers)
AL : American Philosophical Society I am favoured with yours of the 5th of this Inst. and in...
7To Benjamin Franklin from [Benjamin Sowden], 19 December 1777 (Franklin Papers)
AL : American Philosophical Society The 16 of last Octr. Mr. Arrenberg dispatched a Letter of...
8To Benjamin Franklin from [Benjamin Sowden], 1 June 1778 (Franklin Papers)
AL : American Philosophical Society T’other Day, and under Cover from Mr. Gordon, I recieved the...