Just answering so others can have an update ... I have the Gedcom and am in the process of uploading it. Anyone can help with formatting and adding more sources by going here: Category: Weatherall-96 Needs Formatting and More Sources Polak Gedcom 2024
Nearly all the basic sources you need are at WisWasWie. Ancestry.com has a lot of its records indexed.... I usually click the profile, click RootsSearch, choose Ancestry, then go to the WisWasWie link. There's also a good amount of data on FamilySearch.
I'll adopt some of the Amsterdam based families.
For other helpers: https://www.joodsmonument.nl/en/ for searching profiles of Jewish people & Holocaust.
Here's an interesting question - what's the date on this newspaper that Salomon is holding? Can't read the date, but can guess based on the prime minister, etc. Salomon Polak
(I'm uploading the photos - may take a bit bc I don't have the whole Gedcom uploaded yet, and there's not a way to easily select who to upload first)
The date on the newspaper is 22 June 1939. Here's a Delpher link.