This is the last time Charles Briles appears as Eugene Barkley. The actor was drafted into the U.S. Army in June of 1965 and the series never explained nor commented on Eugene after this.
The brass bed in Barbara's room is a frequently used prop. With its gold and red paint, it's distinctive and easy to spot, and viewers can see it many times in future episodes - in other saloon rooms, in hotel rooms, in farm houses, in the Barkley guest room, and even (though it hardly seems his style) in Heath's room in The Lost Treasure (1966).
Both Linda Evans (Audra Barkley) and Donna Michelle (Dolly) had roles in Beach Blanket Bingo (1965).
Closing credits: The events, characters and firms depicted in this photoplay are fictitious. Any similarity to actual persons, living or dead, or to actual firms, is purely coincidental.