1From Benjamin Franklin to [Grey Cooper], [1764?–1775] (Franklin Papers)
ALS : Frank Glenn, Kansas City, Missouri (1955) I used to put two Ounces of Bark finely powdered...
2From Benjamin Franklin to Grey Cooper, 24 June 1768 (Franklin Papers)
ALS : Yale University Library Inclos’d I send, for the Ladies, a Piece of the Bark Cloth with...
3From Benjamin Franklin to Grey Cooper, 11 July 1769 (Franklin Papers)
ALS : Mr. Albert M. Greenfield (1955) An Application being about to be made for a Grant of Lands...
4From Benjamin Franklin to Sir Grey Cooper, 11 December 1777 (Franklin Papers)
AL (draft): Library of Congress; copies: Library of Congress, Harvard University Library...
5From Benjamin Franklin to Grey Cooper, 7 November 1780 (Franklin Papers)
Copy, press copy, and transcript: National Archives; copy: Library of Congress I understand that...