According to Lucas County, Ohio court records, there is a Samuel Joseph Wurzelbacher who has a state income tax lien of $1,182.98. According to the court record he lives on a street that is part of the Lincoln Green subdivision.
And Joe the Plumber's Father appears to be Robert Wurzelbacher right wing fanatic and contributor who is the son in law of..... you're not going to believe this. Charles Keating.
This just gets better and better.