Noord-Hollands Archief te Haarlem, BS Huwelijk burgerlijke stand van de gemeente Haarlem, Archiefdeel van (dubbele) registers van de, Haarlem, archief 358.46, inventarisnummer 21866, 04-07-1866, Huwelijksakten van de gemeente Haarlem, 1866, aktenummer 143
When copying data from this family tree, please include a reference to the origin: H. J. Otten, "Otten family tree", database, Genealogy Online (https://www.genealogieonline.nl/otten-stamboom/I1817.php : accessed January 9, 2026), "Willem van Looij (1818-????)".
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