Henriette Veronica Opdenberg-Kooperberg lived with her husband at H 17 Boekerenstraat in Stadskanaal-Wildervank. When they were arrested, several items of jewelry were taken from them. The husband survived the war.
The archive of the Stichting Sieraden-Comité contains a list of the jewelry looted and a statement taken under oath.
NIOD, Records Stichting Sieraden-Comité, film 581, nr 1050, file 7…