Married 17 Apr 1825 Workum, age 20 or 21 years (married 13 years) to:  Tjitske Durks Mous, age by marriage 22 years, daughter of Durk Manus Mous and Antje Sjoerds.Born 21 Sep 1802 Bakhuizen, baptised 21 Sep 1802 Bakhuizen, died 27 Dec 1838 Workum, age 36 years Children: 1. Antje PosthumusBorn 27 Feb 1826 Workum (birth declaration: 28 Feb 1826), died 24 Sep 1826 Workum, age under 1 year old 2. Antje Hielkes PosthumusBorn 3 Feb 1827 Workum (birth declaration: 5 Feb 1827), died 28 Aug 1903 Bolsward, age 76 years 3. Jantje PosthumusBorn 24 Apr 1828 Gaasterland (birth declaration: 25 Apr 1828) 4.  Gerrit PosthumusBorn 14 May 1830 Workum (birth declaration: 15 May 1830) 6. Jantje PosthumusBorn 21 Apr 1836 Workum (birth declaration: 21 Apr 1836) 7. Gerrit PosthumusBorn 10 Dec 1838 Workum (birth declaration: 10 Dec 1838) | |||
| 2nd marriage Hielke Gerrits Posthumus, son of Gerrit Gerrits Posthumus and Jantje Iebes. Married 24 Jul 1844 Workum, age 39 or 40 years to: Child: | |||