Absolutely no offense intended, but do you have any links that prove paternity? Like, maybe a DU post where Will talks about his father the AL party chairman, or something biographical about Pitt pere mentioning his son William? I believe you, but it's always nice to get confirmation :)
They are around. Don't have time to search right now. Maybe someone else can do find them for you.
If you don't have them by tonight when I return, perhaps I can dig them up. Just freepmail me if you are still looking for them.
Maybe you can do a little blog post of your own.
From Wikipedia it mentions his father.
http://en.wikipedia.org/wiki/William_Rivers_Pitt
William Rivers Pitt (born 1971) is a writer and current editorial director of Progressive Democrats of America, where he writes a blog titled "We the People." Pitt is the former managing editor of the left-wing commentary website truthout.org. He is also a frequent contributor on the Internet forum Democratic Underground under the username "WilliamPitt."
He is the author of the books War on Iraq and The Greatest Sedition is Silence.
Pitt was born in Washington, D.C., and lived several years in Alabama (where his father, Redding Pitt, now chairs the state Democratic Party) before eventually moving to Boston. He was educated in English literature at a small Jesuit college in New England, and after graduation spent two years in San Francisco doing law-related work. Formerly, Pitt taught English literature, journalism, grammar and history at a small private school outside of Boston. Pitt had been writing about politics off and on for several years, but became devoted to the practice during the impeachment trial of former President Bill Clinton. Since President George W. Bush took office on January 20, 2001, Pitt has worked to fight what he describes as "the rising tide of conservative fundamentalism in American government."