Aaltje Aandagt was a daughter of Levie Aandagt and Sophia van der Kruk. She married Barend Koster in 1886 in Rotterdam. He lived in the Israëlitisch Oudeliedengesticht in Rotterdam. They had thirteen children, among whom Levie, Aäron, Betje, Hartog, Mozes, Jacob, three children who died at a very young age and Michiel.
Municipal Archive Rotterdam
Biography