Walter is Greg White’s older brother.
See Walter’s picture in the 1953 Mar-Ken Jamboree.
Water’s brother Greg advises that Walter, who was married, is deceased. He was electrocuted in 1969 while repairing a pole lamp.
From the 1952 Mar-Ken Yearbook:
Name: Walter White
Ambition: Television and radio producer
Special Interest: Autos
Suppressed Desire: Swim to Catalina
Saying: “Oh, come down now!”