Jacob Heijmans was the son of Moses Heijmans and Marianne Cohen.
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The Arnhem police commissioner requested that Jacob Heijman, residing at 32a Sint Marten in Arnhem, be located, detained and brought to trial. He had left his place of residence without the required authorization. This description referred to Jews who had gone into hiding.
Algemeen Politieblad, nr 5, 4 February 1943, 129, notice 333