I am looking for Christina Elizabeth Janssen; Born: 1816 (sometimes listed as Jansen) (Her grave marker in Fairmount Cemetery say's Nee Janssen). She was married to Hans Friedrich Ronnfeldt. Married in Germany. Came to U.S./Scott County Iowa in 1870 as a widow with her two sons, Johannses Heinrich (b. 8/29/1851) and Fredrick Wilhelm (b. 8/18/1853). Her daughters came to U.S. earlier about 1861. They are Catharna Dorothea Roenfeldt (b. 10/08/1845) and Wilhelmine Maragaretha Pauline Roenfeldt (b. 4/2/1849.
Thanks in advance.