The actors, Don Keefer and Catherine McLeod, who played Nally and Lizzie were husband and wife in real life.
The husband and wife, Don Keeferand Catherine McLeod, appeared twice on Gunsmoke as a married couple, both times the husband was abusive and the wife abused.
Over a decade later, Ben Johnson was a cast member in the Burt Reynolds detective thriller, Hustle (1975).