| 1. Willem Jan Knoop, b. Sat 17 Dec 1904, Obergum, Winsum, Groningen, Nederland d. Fri 27 Apr 1984, Groningen, Groningen, Nederland (Age 79 years) ▻ Henderika Noorderwier, m. Thu 12 May 1932 | | 2. Jan Willem Knoop, b. Tue 22 Jan 1907, Obergum, Winsum, Groningen, Nederland d. Sat 11 May 1907, Obergum, Winsum, Groningen, Nederland (Age 0 years) | | 3. Aaltje Knoop, b. Mon 25 Jan 1909, Obergum, Winsum, Groningen, Nederland d. Yes, date unknown | | 4. NN Knoop, b. Mon 19 Jun 1911, Obergum, Winsum, Groningen, Nederland d. Mon 19 Jun 1911, Obergum, Winsum, Groningen, Nederland (Age 0 years) | | 5. Anje Knoop, b. Mon 19 Jul 1915, Groningen, Groningen, Nederland d. Sat 21 Aug 1943, Bierum, Groningen, Nederland (Age 28 years) ▻ Eppe Noordhof | |