1. | Arend van der Knaap was born 25 Jul 1929, Zevenhuizen. Arend married Albertina Johanna Kaptein 2 May 1956, Berkel en Rodenrijs. Albertina (daughter of Willem Kaptein and Charlotta Cornelia Helena van der Velden) was born 3 Mar 1931, Berkel en Rodenrijs. [Group Sheet]
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2. | Willem van der Knaap (1.Arend1) was born 15 Jun 1969, Zevenhuizen. |