Dona Drake who appears as beautiful blonde haired Joyce was the daughter of African-American parents. She was able to pass as White Hispanic during her well rounded career till her retirement later in 1950's due to health issues.
The sports car driven by Clark Kent is a 1953 Nash-Healey. The original owner was actor Dick Powell. Mr. Powell used this car in a film titled Susan Slept Here, released in 1954 by RKO Radio Pictures.
The Blade is named as a competing newspaper to the Daily Planet in Metropolis.
The street "Melrose" was mentioned in this episode because the "Adventures of Superman" was filmed at the California Studios located on Melrose Avenue. Today it's now known as Raleigh Studios, across the street from Paramount Pictures Studios.