This is why no historical dramas should be created about a given era until all the people from that era are dead
One of the good things about the television series
I, Claudius was nobody popped up to say, "You know that one centurian? TOTALLY based on me." (One of the bad things was I was sent out of the room during the orgy scene. I was 7 years old at the time.)
So, when you have a show like
Mad Men, you have people coming forward to claim they were
just like this character or
the inspiration for that character.
Narcissistic much?
On the other hand,
Joan Holloway is obviously shaped like me.

They just had to change her to a redhead so I wouldn't sue and stuff.