Here is a list of the Jewish BMD records for various towns in Lower Franconia. Most of the records are copies of RSA (Gatermann) films bound in books and held by the Würzburg Staate Archives. Others are held by Lutheran church archives. Also mentioned are the records held at the CAHJP.
The list was compiled by Klaus Berger und Gabriele Polster, in: Würzburger Diözesangeschichtsblätter 65 (2003), p. 177-202 and distributed by the Johanna Stahl Zentrum in Würzburg. 
https://www.johanna-stahl-zentrum.de/forschung/quellen/m_20933
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Andreas Schwab, Montreal, Canada