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Male  Ir Johan Willem Theodoor "John" van Erp
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Female  Ymke Marlena "Ymkje" Trap, kinderarts ‏( Dr)‏
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Birth -- 6 June 1904 30 23 Magelang ‏(NOI/Indonesie)‏
Birth -- 27 March 1911 Amsterdam
Civil Marriage -- 5 February 1952 ‏(Husband's age 47,‏ Wife's age 40) Haarlem Johan Willem Theodoor "John" van Erp + Ymke Marlena "Ymkje" Trap, kinderarts ( Dr)
Death -- 20 February 1980 ‏(Age 75)‏ Cleveland ‏(Ohio)‏ Usa
Death -- 3 April 1992 ‏(Age 81)‏ Boston ‏(Amerika)‏