My GGGrandfather, Hermann Kunkel, immigrated to Wisconsin November 1869. His brothers followed soon after (Frederich L. Kunkel and Charles Kunkel arrived January 24, 1870.) Their parents, Johann and Wilhelmine (nee Zwick) Kunkel arrived in the US January 13, 1870. Once again, they all immigrated to Milwaukee, Wisconsin.
Hermann married Sabina Eichner and together they had four children: Edward Kunkel, Fred Kunkel (my GGrandfather), Emma Kunkel, and Mathilda Kunkel. Any connections? I would be willing to share everything I have on the Kunkel's that I've found.