In this episode we learn that Chip's full given name is Richard O'Casey Douglas.
Even though Jeanette Nolan was playing a grandma, she is actually three years younger than Fred MacMurray.
Terry Burnham ("Gail") was actually 17 at the time of this airing, born Aug. 8, 1949, therefore her grandmother's desire for her to wait until she was 16 was one year earlier.