Here is one of the most complete picture lists of Jews under Stalin available on the entire Internet.
Most photos are from the book Juden Hinter Stalin by Rudolf Kommoss:

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Bermann	Illja Ehrenburg	Trotsky	Finkelstein
Firin	Schemtschuschina	Frenkel	Gamarnik
Ginsburg	Gubelmann	Heller	Jagoda
Kaganowitsch	Joffe	Jofan	Kolzov
La Gaurdia	Kaganowitsch	Kaganowitsch	Manuilski
Mechlis	Kaganowitsch	Popok	Radek
Radek	Rappoport	Rosenfeld	Salkind
Sinowjew	Smuschkewitsch	Stein	Suritz