ralph norman hagin

I'm searching for information re: my father Ralph Norman Hagin. Born in Kansas in 1899. I knew him well but never queried him on his background. Moved to San Francisco in 1907 and survived the earthquake. I think my grandfather's name was Norman Hagin. He died when I was about 8-years old. My father died in 1973 in Oakland, CA. He has a sister Lois.