 Maria Margaretha Koelman, daughter of Jan Bernardus Koelman and Saapke Sybes "Sabina" Smits.Born 1790 Workum, died 31 Jan 1866 Zwolle, age 75 or 76 years Married to:  Joannes Gerardus Heuveldop, son of Herman Heuveldop and Maria Elisabeth Kloppenburg.Born 1782 Emsdetten, Duitsland, died 17 Jan 1822 Leeuwarden, age 39 or 40 years (death declaration: 18 Jan 1822) Child: 1. Gerardus Ignatius HeuveldopBorn 22 Oct 1814 Leeuwarden, died 24 Jul 1876 s-Hertogenbosch, age 61 years, buried Blauwhuis | |||