I saw this recently on FamilySearch – The Knowles Collection Helps the Jewish Community Find Their Roots: https://www.familysearch.org/en/blog/knowles-collection-jewish-records. Longer article. I included the topics below.
By W. Todd Knowles, Diane Sagers February 10, 2022
The Jewish community is unique in that they have maintained a cultural identity despite centuries of challenges. Family history is an important tradition for those of Jewish descent. However, since there are few specific Jewish record collections to refer to, tracing family lines can be daunting. Fortunately, Jewish genealogy expert Todd Knowles offers the Knowles Collection to help individuals searching for their Jewish genealogy.
Gathering Scattered Jewish Records
The Creation of the Knowles Collection
How to Search the Knowles Collection