Rudolf Polak's name features on a hand-written list of everyone who held a function in the Nederlands Israëlietische Gemeente Haarlem. A photograph has been preserved of all the officers. Rudolf Polak visited the poor on behalf of the Dutch-Jewish Poor Relief Board.
Rudolf Polak was single. He lived at the Schotersingel 59 in Haarlem.
Jewish Historical Museum, Documents collection, inv.nr 1001
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