Although the character of Miss Rosemary never returns, the actress Amzie Strickland returns several times as other characters, among them are Lila Sims, one of Barney's real estate prospects, as Otis Campbell's sister-in-law, Verlaine and as Myra Tucker.
Barney begins courting Miss Rosemary but it apparently doesn't last. She never makes another appearance, nor is she ever mentioned again.
Andy Griffith appeared with Don Knotts and Jack Mann (Tracy Crawford) in No Time For Sergeants (1958).
This was the second episode in which Andy refers to the telephone operator, Sarah, by name. The initial reference was near the beginning of Episode 2, "Manhunt", when Andy takes the phone away from Captain Barker.