Nieuwenburg family home | Amsterdam
The house at Gaaspstraat 12 got a different house number around 1934-1935. Then the street was renumbered. Number 12 became number 25. The family, with Miep Santrouschitz, first lived on 25-III and from August 29, 1940 on 25-Hs.

Woningkaart Gaaspstraat 12, later 25.
Stadsarchief Amsterdam. Dienst Bevolkingsregister, woningkaarten. Copyright: Publiek domein.