1. | Gerrit Knaap was born on 15 Sep 1855 in Amsterdam; died on 1 May 1948 in Amsterdam. Gerrit married Maria Hendrika Kolder on 26 Feb 1879 (burgerlijk huwelijk) in Amsterdam. Maria was born on 27 May 1858 in Amsterdam. [Group Sheet] [Family Chart]
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2. | Helena Knaap ![]() Helena married Hendrik Willem Lanfermeijer on 24 Apr 1901 (burgerlijk huwelijk) in Amsterdam. Hendrik (son of Casper Hendrik Lanfermeijer and Johanna Rietberg) was born on 8 Nov 1874 in Amsterdam; died on 27 Mar 1944 in Amsterdam. [Group Sheet] [Family Chart] |