I also have ancestors from these places too. First, the Jungfer records only go back to the 1790s but the church building (which is still there, though now Catholic)looks much older. I checked
Furstenau and Tiegenort for earlier records for the Jungfer area, but it became obvious those churches did not cover that town (at least for most of the 18th century). The earlier church records for the Jungfer area probably existed but are now apparently missing.
The church records from Zeyer cover Stuba (start in 1774)and other nearby towns. Note - the 1710-1770 records for Fichthorst, just northwest of Elbing, are mistakenly under St. Annen Church, Elbing. I looked at those for family that lived in Hoppenau. My family names in Stuba/Zeyer area:
Jahn, Baarwich, Likfett,
Fidler, Glodd.