Henriette Polak was a daughter of Lion Polak and Sara Braasem. She married Philip Isaäc van Dam in 1934.
Stadsarchief Amsterdam, archiefkaart Henriette Polak
This person is commemorated on a memorial in Middelburg. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.