Michael Lacopo's research into the origins of Ludwig Mäintzger indicates the village of Merchingen as the likely origin of the Mansker-Minsker families.
So where is Merchingen? Here is a series of Michelin maps zooming in on its location. You can see that it is east and a bit north of Karlsruhe and Neureut.
You can also see a couple of Google Earth satellite photos: Western Europe and Merchingen