Melvin Johnson's children Bruce and Gayle. gf Charley

I am looking for a Bruce Johnson whose father was Melvin Johnson who died in Ohio in 2003. The g-father was Charley or Charlie or Charles. Charley's birth surname was Carroll. He changed name in the early 1920's and left Oklahoma for California. I am trying to find Bruce who was or still is married to a Sharon. He is a cousin and trying to tie in genealogy records.May be living in Calif. or Utah.Bruce's mother was Rosemary.Any help will be appreciated.