I am looking for information on my great-great Grandma Elizabetha Sophie Knodel Serr. She married Karl Serr 6 Jan 1878 in Worms Odessa South Russia. They came to America about 1889 and settled in Menno, South Dakota. I have found 3 sons for this union,Karl (who didn't come to the U.S. with the family), George and Andrew (Andreas) who is my great grand father. I can't find a death date for her. She was said to have died of breast cancer about 1903, however I have found records of her later than that.