Vrouwtje Ketellapper was a daughter of Marcus Ketellapper and Rachel Bonewit. She married 6 August 1919 in Amsterdam to Isaac van Loon, a son of Salomon van Loon and Marianna Bonewit. The couple had three children.
Vrouwtje was born in a family with ten children. Two of her sisters have passed away before the war. Her other siblings, Isaac, Abraham, Hijman, Marianne, Leentje, Nathan and Alexander,…