I have a Frederick Schmalz that came from DÖNGES, Thuringia, Germany sometime in the 1840's or early 1850's.This village was in Saxi-Weimar. Came with a brother, don't have his first name. Brother settled in PN somewhere. settled in Milwaukee WI and died there in 1906.
Maybe this will give you an area in Saxi-Weimar to zero in on. The village is close to Tiefenort and I know there was Schmalz people there also.
Let me know what you find out. Maybe we connect over there.
Marilyn (Schmalz) Fiedlermfiedlerdna@gmail.com