Esther Engelsman was a daughter of David Engelsman and Naatje Presser.
Stadsarchief Amsterdam, archiefkaart David Engelsman
Esther Jas-Engelsman worked as a cutter with the lingerie- and ready-made clothing company SIDVA (Simon de Vries Ateliers) in Amsterdam in October 1941.
She then had been in office for eleven years.
Lijst van Joodsch Personeel-SIDVA Oct. '41