 Pieter Jacobs van der KnoopBorn 09 May 1838 Workum, died 10 Apr 1878 Workum, age 39 years Married 25 May 1861 Workum, age 23 years (married 16 years) to:  Aaltje Ruurds Potma, age by marriage 22 yearsBorn 16 Jan 1839 Workum, died 08 Apr 1902 Workum, age 63 years Child: 1. Okke van der KnoopBorn 20 Jun 1875 Workum, died 26 Mar 1942 Rotterdam (Schiebroek), age 66 years, buried 29 Mar 1942 Hillegersberg, Nederlands Hervormde Begraafplaats. Occupation: reiziger | |||