I know he had a brother named George.. He died in a war, i think it was the korean war, not sure on that. But My grandpa had 6 children with his wife Dorris (maiden name danaho). Twin boys, Richie and Jimmy, (richie died in the vietnam war, and Jimmy died about 6 or 7 years ago) a son named Roger, (died 4 years ago) Patty (living), Peggy(living),And my dad, Robert (living).
I can ask someone about other siblings of my grandfather, if you want specific birthdates or death dates, i can head out to the cemetary and get them for you. I'd love to help.