Mitch Snow was an astronaut in the 26th century, along with Ray Bogle and Jim Lyons. When Lyons' ship fell through a time hole, Snow was devastated and spent a long time gathering up all of the time particles for scientists to study.
A general armistice was called on Earth to begin the search for Jim. After 5 years and ten inventions, Snow and Bogle were sent to the thirty first century to find Lyons, who was now going by the name Cactoid Jim. Snow and Bogle attempted to convince Jim to return with them to the 26th century, but Jim refused.
Jim realized that Mitch had fallen in love with Elizabeth, Jim's wife. He asked Mitch to take care of Elizabeth and Owen, their son, before sending Snow and Bogle back to the 26th century. Snow didn't forgive Jim for not returning, calling Jim a "snake in the grass."
- Mayors' Retreat (TAH #83)