The name of Heath's horse is Charger.
The glass of light-brown-colored sarsaparilla that Andrea drinks in the bar scene with her grandfather is a non-alcoholic beverage similar to root beer that was popular in the 19th century.
The sets from Gunsmoke are used in this episode: The Long Branch Saloon and Front Street sets.
Brooke Bundy's character Andrea is self described in the dialogue as being 14 years old. In real life, the actress was 22 when the episode was filmed and originally aired.