Married 8 Jan 1821 Hennaarderadeel, age approximately 39 years (married 55 years) to:  Franske Eeltjes Kapper, age by marriage 30 years, daughter of Eeltje Douwes Kapper and Isabella Nassette.Born 20 Jun 1790 Warga, died 23 Jan 1876 Oosterend, age 85 years, buried Oosterend Children: 1. Froukjen Pieters KoopmansBorn 25 Apr 1822 Oosterend, died 30 Mar 1899 Bolsward, age 76 years, buried Roodhuis 2.  Sijbrandus Pieters KoopmansBorn 24 May 1825 Oosterend, died 16 Jun 1890 Wijtgaard, age 65 years, buried Wijtgaard | |||