I also am searching the Belz family from the Cleveland area. My father's father was Carl Belz and he came to PA by way of Cleveland. He had a brother William and a sister Katherine. My father said that Aunt Katerine moved to San Diego CA but could not remember when. My father has no names or information on his grand parents. I can find both Carl and his brother in census and other records around 1920 but so far no sister or other family.