Joann I believe you have this right. According to the Dillenbach researchers and the Dillenbach Genealogy book, there were two brothers, Martin and Gotlieb, who married two Dillenbach sisters. A third brother (my direct line actually) named George married a woman named Elizabeth Misselis/Marcelis (I really wish he had married a Dillenbach as well! *LOL*) There is another fellow, Caspar Nestle, floating around the Mohawk Valley region at this time (basically 1750-1800) who may be a brother also, but more probably is a cousin.
This group of Nestles *appear* to be part of the Palatine immigration - so that would make them either German, Swiss, or Dutch -- if they are Swiss, we might just inherit some chocolate bars! But my ggmother, Martha Nestle Bird, always told me we were Dutch. However, *her* ggmaother, Rebecca Countryman Nestle, is indisputable German -- so I guess you could just take your pick.
There is a Martin/Martinus Nestle/Nestell in the Revolutionary War who is *probably* the father of our Nestle brothers (all of whom were also Revolutionary War vets) -- he is probably who you could consider the progenitor.
Any further questions, e-mail me at email@example.com (I believe we have already exchanges some info....??)