Who is Johnnie Culpepper Bundy from The Stranger Beside Me and what is their importance?

Johnnie Culpepper Bundy became Eleanor Cowell's husband. The couple has four children of their own, and Johnnie becomes Ted's stepfather. Johnnie's role in Ted's life after Ted's youth is unknown, but it is believed that Johnnie provided a stable life for Eleanor and Ted at the beginning, which would extend into Ted's childhood.