I noticed your reference to the Rhinefals and am sending this query to see if our research might connect.
My wife has an ancestor named Katarina Schweissgut who married a Joseph Walter, probably about 1790, in the town of KERNEI in the Batchka.Apparently both families had participated as "colonists" in the Hapsburg "resettlement" of the Batschka area... most likely settling there about 1786.As you know (if your ancestors are who I think they are) those families that participated in that long and successful colonization of the Batschka were known as "Donau Schwabs" or "Danube Swabians."Because of the quality of land in that area and the skills and hard work of these people, the Batschka became known as "the breadbasket of Europe" throughout the 19th and early 20th centuries.
I have no information on her ancestry except to notice that other related families MIGHT have been Stoekl, Ehrlich, and Oswalt, based on those names appearing as marriage witnesses.She and her husband, Joseph Walter begot nine children... whose records are available in Kernei and nearby Tschonopel; and I can give you a reference where you can get them if you wish.
I will be doing further research of the Kernei records to attempt to track this lady back to her origin in Germany... but the area you mentioned would certainly fit the pattern of migration of that colonization ("Auswanderung und Einsiedlung.")I'm eager to hear whether you might connect with this information.
Of possible interest to you (if you are related) is the fact the their son, Jacob Walter, b.Sept 19, 1819, is known to have had a condition known as DENTINOGENESIS IMPERFECTA.This condition has been well researched and is known to be autosomal dominant.That fact would mean that either Katarina (Schweissgut) or Joseph Walter had the condition... and 50% of their children would inherit it (statistically) ...so on down the line of their descendants. The trait consists of very weak and discolored teeth which are usually "gone via decay" by adulthood... and it would be a well known condition (a "curse") within a family line.I just thought I would mention it... just in case.If it is in your family line, it would be generally known.
By the way, the name anglicizes literally to to "SWISS MANOR."
I'm eager to hear whether we might connect.I'll send this to your private email address also. Best regards! ~Dan Drew Indianapolis