Eric,
  Can you give a bit more information about Regina Schwartz. Especially an approximate birth year and parents' names if known? Also siblings names and approximate birth years?
  In the Dvorsak gazetteer I found that Jewish people from Ibrony in Szabolcs county are associated with the synagogue in Tass. FamilySearch has the Tass Jewish records for 1852-1895, film 642915, items 2-3. Here is a link starting at item 2:
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS87-S9M6-R?i=41&cat=274971 
Note it says the town is: Nyirtass and is in the province of Nyiribrony. 
A quick perusal of the fathers' and grooms' names shows a number of Schwartz (and other spellings), but I did not see Regina's birth.

It appears that this film has a number of towns in the Nyiribrony province, so it might be worth going through all of them, as well as other films for the province. If you search FamilySearch catalogue for prior and subsequent film numbers (several on each side), you will see more Nyiribrony province Jewish records.

Best of luck,
Larry Bassist