So a good search through the Tukums Lutheran church books from 1906-1909 turned up no new, solid information on any brothers or sisters of Karlis Vinakmens.
But, it did present a few other interesting facts:
1. There are “Siwerts” in the area
2. There are other Wihnstein families in the area (this I knew already, but I am now piecing them together)
3. Greete and Willis Wihnstihn are the godparents of another Wihnstihn child(Greete is the name of my Willis’ sister) while this certainly isn’t proof of a relation between this other Wihnstihn family and my Wihnstihn family, it does lend some weight to the idea (are you good friends with anyone else who shares your last name but isn’t related?? …me either!)
4. As for the concept of “Vinakmens” over “Weinstein” I now have evidence of this name’s variations earlier than before. I found a baptism from 1908 with the spelling “Wihnakmens”. This is also interesting because up until now I had never heard “Wihnakmens” – always “Vinsteins”, with the beginning part of the name Latvianized rather than the latter half.
5. Ans Rudolfs Wihnakmens is the son of Willis and Kattrine. I have not yet found any other Willis Wihnstihn in the area aside from my great, great-grandfather, who has not been painted as the greatest husband or father so far. Is this the same Willis? Ans is listed as a legitimate child. Did he leave Emilija and come back to her later? Emilija’s middle name is Karline… Could the church book have confused Karline and Kattrine? Not likely but…