I also have information on Mary Theiss, nee Wiethop. I have same birth and death dates. She married Martin Theiss 18 October 1883 in St. John Ev Church, Mehlville, St. Louis County, MO. She was born Anna Maria Catherine Wiethop, known as Mary Theiss. She was christened 01, December 1861, St. John Evangelical, Mehlville, St. Louis County, MO. Burial 03 September 1942, Old St. John Cemetery, Mehlville. Her parents were Friedrich Weithop and Anna Kahre. Friedrich's brother Ernest was my husband's greatgrandfather. Let's get in touch and share information.