Yes, that's the Mary I have. According to the census in 1880 in Richland County (just a copy of a transcribed record, which could contain errors, I suppose), Mary was born in Minnesota. She was buried in Immanuel Lutheran Cemetery in Richland County, and that says her mother was Amelia instead of Wilhelmina (not sure if I got Wilhelmina from their marriage certificate or where). I have Charles born June 7, 1849 in Pennsylvania. Do you have more on Mary's family -- siblings or parents?