Elias den Hartog's first wife was
Ragina den Hartog b. 30 Mar 1879 Hendrik-Ido-Ambacht, m. Elias den Hartog 11 November 1908, d. 26 Jun 1924 Rotterdam (buried in Rotterdam Toepad)
Ragina and Elias had a daughter, Sara Elisabeth, born 14-11-1917 in Zwijndrecht and killed 3-9-1943 in Auschwitz.
Elias married Geertruida in 1926