I guess I was too skeeved at the rumours that he asked that women who applied to his library school to submit their measurements and eye colour to notice this before, but:
Melvil Dewey had a son. And was married twice. (Well, he didn't have the son out of wedlock. Actually, he didn't have the son ... his first wife did. Name of Anne.)
I guess I was hoping that the "Father of Modern Librarianship" was a metaphorical status.
This makes a good case for the 'ewww' factor, without even getting into the anti-Semitism and other forms of bigotry ...