In discussions with the genealogist about their family tree, Gomez (characteristically) disparages any possible connection with the family of Presidents John and John Quincy Adams. Despite the disparity in spelling, cartoonist Charles Addams (the "Family's" creator) was reportedly distantly related to the Presidential family.
The shot of Kitty-Cat entering the living room seen near the end of the story is also used in the opening credit sequence. Footage of Gomez and Morticia practicing their swordplay will also be used in the second version of the credits sequence, replacing a shot of Mr. Hilliard pulling the doorbell.