Hi - my maternal grandmother was a Bentz and her kin are scattered all over South Dakota so I am interested in your research project. At this time, I don't find any information in my data base that fits. Grandma's family moved from Menno, SD to Fairfax, Gregory County, SD in 1889. The family immigrated from Neudrof, S. Russia in 1885, arriving in Yankton and settled for a few years near Menno. The only Hausauer I have is Anna Marie (b. 1778 - 1815). I have multiple Christian Bentz's individuals but none seem to match the dates you have. I have a cousin who does a great job of digging into family history that I have contacted regarding your search so we should be getting back to you with more information.