Bertha KLUENDER b.1849 md Ferdinand W. BUETOW in 1868 in Pommern. Both died in Stearns Co MN. Her sister Wilhelmina b.1853 md Karl Fr. Wilhelm ULLMANN c1870 in Schonhagen Kreis Naugard Pommern. Both died in Door Co WI. Third sister Mathilda A. b.1854 md Herman KLAPKA c1871 in WI? She died Becker Co MN, he died Lyon Co MN. All three families lived in Kewaunee Co WI 1870's & 1880's. Father was Karl KLUENDER. Mother, 1st name unknown, was a SPREEMANN and a sister to my GGGM Johanna SPREEMANN ULLMANN. Looking for anyone researching these families.