I am trying to trace my paternal grandmother's line (Marie Adami Tonne) including Katharine Adami, b. 1822, Germany. She was the mother Marie Adami, b. Dec. 25, 1852, near Hanover Germany, died 1942 in Rock Rapids, Lyon County, Iowa. I believe Katharine was also the mother of Catharine Sophie Adami, Birth 3 Jun 1852 in Germany, m. Heinrich Jacob Karstens, Osterende-Otterndorf, Hanover Germany in 1876; Death 13 Apr 1887 in Hull, Sioux, Iowa. She likely was also the mother of Margaretha Adami, m. Nicolas Katt, both born 1854, Germany, arrived US 1882, lived in Garfield township, Lyon County, Iowa