Independent scholar. Jaap Colthof, a psychologist, lives in Jerusalem and works in
its ultra-Orthodox community. He is preparing a book in Dutch on Abraham Prins, one
of the founders of the Pekidim and Amarcalim (Officers and Treasurers) organization,
which had its centre in Amsterdam. He recently published a short article in the Dutch
Jewish weekly NIW about Sandy’s Row synagogue in London’s East End.
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