I believe my grandfather, John Daiber, is the brother of your grandfather. I thought my grandfather was an only child (older siblings had died before he was born), until a cousin on our great grandmother's side (Walsh) sent me some info listing a brother named George. My grandparents moved to San Diego I think sometime in the late 30's.
Sorry I haven't replied to you earlier, but I haven't been on Ancestry.com for awhile and happened to see this post on the internet!
Teri Zimbardo (Daiber)