This person is commemorated on a memorial in Vierhouten. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
Joanna Sarfaty married Barend Korper on April 30 1941. This was her second marriage. From her first marriage she had three children who survived the war.
Stadsarchief Amsterdam, archiefkaart Joanna Sarfaty