Jack Wrangler's birth name is John Robert Stillman.
Billie Jack's birth name is Jack Hawkins.
Jack Jozefson's birth name is Jack Auerbach.
Jack Justis's birth name is Jack Crupi.
Jack Kenna's birth name is Jack kenna.
Jack Eyamie's birth name is Jack Eyamie.
Jack Dracula's birth name is Jack Martin.
Jack Deloplaine's birth name is Jack A. Deloplaine.
Jack Yarber's birth name is Jack Yarber.
Jack Osterman's birth name is Rosenthal, Jack.
Jack Grisham's birth name is Jack Grisham.
Jack Hedley's birth name is Jack Hawkins.
Jack Vettriano's birth name is Jack Hoggan.