I believe all episodes of The Mysterious Traveler were written by the prolific pair of Arthur and Kogan. The episodes stretched the sf field from thrillers to hard science fiction, but always with a creepy atmosphere. There were at least three time travel episodes and several more that I’ll mark as probably time travel based on their titles.
This is the Mysterious Traveler, inviting you to join me on another journey into the realm of the strange and the terrifying. I hope you will enjoy the trip, that it will thrill you a little, and chill you a little. So, settle back, get a good grip on your nerves, and be comfortable if you can, and hear the strange story that I call “The Man Who Tried to Save Lincoln.”

Variants

(1)
  1. The Mysterious Traveler by Robert A. Arthur and David Kogan (13 January 1945).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Robert A. Arthur