Reading the German language records was difficult and I almost didn’t bother obtaining copies of the baptismal entries for the siblings of John George Trautvetter who was born in 1798. It is a good thing I did for there was a clue in one of the relationships listed along with the name of the sponsors.
And there in the entry for one of John George’s brother was the indication that their father’s brother was the sponsor.
A helpful hint in this case where knowing as many relationships as possible is necessary because every family had a George and a Michael and every son’s first name was Johann.
Don’t neglect those ancestral siblings.