Timeline Chart

Female  Johanna Lamberta Petronella Koopmans
Male  Levenloos Koopmans
1922--
1926--
1932--
1937--
Birth -- 4 June 1927 28 26 Maastricht
Death -- about 1929 ‏(Age 18 months)‏ Rotterdam
Birth -- 11 October 1932 33 31 Rotterdam
Death -- 11 October 1932 Rotterdam