Ohnesorge(n) is a rare name, and I am descended from a line of Ohnesorge(n)'s!!! (At a certain point, the "N" gets dropped.) I know it well. There have been some marriages in my line into Ruiz and Bernal, and some other Latino names. They were in the Texas/ New Mexico/Arizona/Mexico area from the 1800's forward. Let me get my ancestor up on wikitree - (sorry sourcerers, I will attempt at fast sourcing) so you can see. Message me, if you think it could help, I would love to help you. I am only in contact with one family, but maybe we can work with search angels? I also have myself and my 1/2 brother and 1c1r DNA tested, and we await my aunt's results. We are all from that line.