I also am from this family. Grandfather William (one of the 18) Gross who was a son of Joseph and Anna Gross, both from Germany (I believe one town was Karlruhe and can't remember the other off the top of my head). Of the 18 Children I can remember: Sons-Joseph, Otto (Not First name though), Carl, William (Bill),Fred, Walter, Robert (Bob aka Knocky) Daughters- Charlotte, Margie??? I will contact my parents as they know a lot more than I do. I believe the youngest- a daughter- may still be alive? Feel free to respond when you see this...firstname.lastname@example.org.