
It looks like you actually did start a project a couple years ago but didn't fill it: https://www.geni.com/projects/Victims-of-McCarthyism-HUAC/3267777
I'd be happy to help you with that.
There's also the Hollywood Blacklist project, which isn't the same thing but will have some overlap in members: https://www.geni.com/projects/The-Hollywood-Blacklist/16955
I've connected them as related projects.
No worries! I've been happily filling the project for the past couple days and building a few trees as needed. Right now I'm working on the tree for Lionel Stander if anyone specializes in Jewish families of Riga and wants to help!