I've done quite a bit of research on who Benjamin Franklin was and whether he was ultimately a moral character. His youth was documented as being tainted by sexual misconduct, but all the evidence I've seen shows that he intentionally matured morally as he aged.

Is there anyone who has more than hearsay regarding Benjamin Franklin being sexually permissive while he served as an ambassador or in other settings? I haven't seen anything more than opinionated reading into his letters and intentional character assassinations.