Bonnie Baxter's parents died when she was very young, and she was burdened with raising her younger, troublesome brother Corky. As an adult, Bonnie became a geology assistant at Vanderbilt University in Nashville, Tennessee. There, she began having an affair with geology professor Calvin "Cave" Carson. When the board of regents discovered the affair, Carson was forced to break ties with her and Bonnie was fired from the university. Soon after, she contacted scientist Rip Hunter, who was in the process of putting together a team of adventurers for a time traveling expedition. She relocated to Rip's Time Lab in upstate New York and became one of the Time Masters.
- Bonnie Baxter first appeared in Earth-One continuity in Showcase #20 by Jack Miller and Ruben Moreira. She was reintroduced in Post-Crisis New Earth continuity in Time Masters #1 by Bob Wayne, Lewis Shiner and Art Thibert.
- 11 Appearances of Bonnie Baxter (New Earth)
- 3 Images featuring Bonnie Baxter (New Earth)
- 1 Quotations by or about Bonnie Baxter (New Earth)
- Character Gallery: Bonnie Baxter (New Earth)