Thanks for your reply. I'm sorry to say that I'm grasping at straws. As I mentioned the only info I have is from my g-grandfathers obit naming Mary Kriegler of Omaha as his sister.
Combing the 1930 census (at 1023 Atlas) is a Mary Krieger who is 74 years old. In 1933, when my grandfather died, he was 72.
This Mary would have been 77 at that time. She is the only elder Krieger I found in Omaha, being born around 1856.
Very curious about your Mary and Stephen though...this sounds like a better fit. Is the time frame the same? Mathias was born in Oct. of 1862, was German speaking, emigrated in 1880 to St. Paul....do you know when this Mary emigrated? Was she married at the time?