Grietje Lea Hartog was a daughter of Joseph Hartog and Mathilda Cohen, who both are buried on the Jewish cemetery in Borculo and whose tombstones still exist.
Addition of a visitor of the website
This person is commemorated on a memorial in Ter Apel. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.