Edmund de Leeuw came from a family of five children. His father managed to have three butcher's shops, for every son one. The parents of Edmund de Leeuw survived the war.
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For a biographical note see: H.E. Dominicus, Mauthausen. Een gedenkboek (2e herziene en uitgebreide druk; Amsterdam 1999) 95.
In addition, a Jokos file (number 13208) on this family is at…