1To Benjamin Franklin from Christopher Baldwin, 18 December 1778 (Franklin Papers)
ALS : American Philosophical Society I am sure my dear Sir you will be much surprised at...
2To Benjamin Franklin from Christopher Baldwin, 18 February 1783 (Franklin Papers)
ALS : American Philosophical Society Look my dear Sir at the place from whence this letter is...
3To Benjamin Franklin from Christopher Baldwin, 5 March 1779 (Franklin Papers)
ALS : American Philosophical Society Many thanks my dear Sir, for your kind letter of 26th. of...