Ward Bond is on crutches in this story due to a hip injury suffered when two horses collided on set.
Anne Jefferys and Robert Sterling starred in the 1953 tv series "TOPPER" as George and Marian Kirby. They played ghosts, also starring Leo G Carroll as (Topper) causin him good-natured trouble on the series.
Wagon Train Tracker: No geographic references in the episode, but by depicted terrain the train is moving west on the Oregon Trail through western Nebraska.