My father was Ben Zimmerman, and his parents were Harold and Ethel(Dunlap) Zimmerman. I know my great grandmothers name was Clara Zimmerman, but I do not know my great grand fathers name. I do know my grandfather had brothers named Edward, James, and Nolan. Also he had a sister named either Maryanne or mary Jane who married into the Gay family. There was also half brothers and sisters from a marriage after he was married to Clara. If you know anything about this family please get back to me.