Porky's address is 123-1/2.
The magazine spoofed is Esquire, a popular men's journal at the time.
The "magazine for cavemen" that Porky gets in the mail has a number of Warner Bros. employees' names on the cover (Cob Blampett = Director Bob Clampett, Mubby Tillar = Writer Melvin "Tubby" Millar, Tick Dhomas = Background Artist Richard H. "Dick" Thomas, Cohn Jarey = Animator John Carey, Reve Visto = Animator Vive Risto, Ray Blouse = Cameraman Ray Bloss, Tary M[cut off] = Ink and Paint Supervisor Mary Tebb), all of whom worked on this cartoon. Several others are also "honored:" Have Doffman = Dave Hoffman, Farren Woster = Warren Foster, Jorge Gordan = George Jordan. Cut off at the bottom of the list of names are the series titles "Looney Tunes" and "Merrie Melodies." And the illustration of a caveman on the cover looks suspiciously like Producer Leon Schlesinger.