Jacobs, Henriette (birth 14 Feb 1925 Groningen - died 28 May 1943 Sobibor (Pol))
Jacobs, Rosa (birth 20 Aug 1860 Borger (Dld) - died 3 Feb 1937 Osnabrueck (Dld))
Jonas, Rebecka Rika (birth 23 Feb 1845 Zons (Dld) - died 2 Aug 1887 Keulen)