Jacobus Leefmans was married. He and his wife had two children and lived in Amsterdam. Jacobus Leefmans was a sales representative. He helped Jews in hiding, in part by forging identification cards. Jacobus Leefmans's wife survived the war.
NIOD, Erelijst Verzet en Koopvaardij, database made by J.W. de Leeuw
Jacobus Leefsma and his wife were married on 29 January 1931. He was a sales representative for photo materials.
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