There is quite a bit of info in Swedish on the local Jewish communities.
The wiki article   www.wiki.rotter.se/index.php.Judar   has a lot of material and links.

Sveriges Släktforskarförbund.  also has an English page where you can make contact with relevant groups.

I have not done a detailed search but it appears a lot of data has been collected on your subject.

good luck,  lycka till

Peter Weinstock