Familysearch.org holds limited Jewish records for Wiz'nitz, Bukowina (today Vyzhnytsia, Ukraine) :
Chernivtsi State Archive: Record group 1245, series 1, files 933-940.
See in
https://beta.familysearch.org/search/catalog/1461615# (you need to have an account and login).
You need to browse the images online but it's worth it if the time frame is right for your family.
Yohanan Loeffler
Melbourne Australia
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