My father's family (Zievers) are descendants of Mathias Zievers, whose brother Thomas and he came to Kenosha in 1857. Mathias was married to Mary Kramer and they had son John B.Zievers, my ggrandfather. Thomas married Sibilia Kramer (sisters?) in 1858. Looks like all came together from Fleissem/Bitburg area on the ship Concordia out of Antwerp, Belgium. I believe Laurence was the son of Thomas and Sibilia.