Appearing in "Courtship of Eddie's Father" in his film debut in the uncredited role of Child at Party in Indian headdress is Ron Howard's (Eddie) younger brother, Clint Howard. This marks the beginning of a career for Clint punctuated by appearing in film and television work that also involves his brother Ron.
In Norman Jones's (Jerry Van Dyke's) radio studio, there are black-and-white publicity photos of various celebrities on the wall. One of the pictures is of Jerry Van Dyke's real-life brother, Dick Van Dyke, who was starring in The Dick Van Dyke Show (1961) at the time the film was made. Among the many other 60s celebrities pictured are Anna Maria Alberghetti and Mort Sahl.
MGM produced a special 33 1/3 rpm vinyl record sent to movie theaters that contained movie radio spots for a "Blonde, Redhead and Brunette" contest. The record was produced by Donahue & Coe Inc. Advertising of New York.