Okhuijsen, Arnoldus Franciscus Johannes (birth 8 Jul 1838 Utrecht - died 28 Apr 1904 Amsterdam)
Oppenheim, Keetje (birth 18 Apr 1812 Oude Pekela - died 8 Oct 1880 Groningen)
Oppenheim, Samuel Juda (birth Aug 1785 Nieuwe Schans - died 30 Mar 1873 Groningen)