Dr. Edward Bancroft, physician, scientist, and writer, Franklin's confidential associate, and double agent during the Revolution (JA, Diary and Autobiography , 4:71–72; Julian Boyd, “Silas Deane: Death by a Kindly Teacher of Treason?” WMQ , 3d ser., 16:176–182, 319–342, 515–550 [April, July, Oct. 1959]).