Benjamin Franklin's Autobiography is available on Mobileread in several formats, but epub was still missing.
From Wikipedia:
The Autobiography of Benjamin Franklin is the traditional name for the unfinished record of his own life written by Benjamin Franklin from 1771 to 1790; however, Franklin himself appears to have called the work his Memoirs. Although it had a tortuous publication history after Franklin's death, this work has become one of the most famous and influential examples of autobiography ever written.
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