Who is Pat Hobby's Son from The Pat Hobby Stories and what is their importance?

Pat Hobby's Son appears in Pat Hobby, Putitive Father. When he visits California, he goes to the studio to have a tour. John Brown Hobby was not impressed with his father. When he wants to meet one of the hottest actresses in Hollywood, Pat nearly gets everyone arrested attempting to make this happen. In the end, John feels sorry for his father and convinces his uncle to give him an allowance. Unfortunately, England goes to war the following day, and the money is tied up in British banks.