 Jan Thijsses Altenburg, son of Thijs Jans Altenburg and Ietje Sinnema.Born 31 Mar 1918 Oosterwierum, died 17 Aug 2007 Grouw, age 89 years, buried Oosterwierum Married to:  Aukje Bijlsma, daughter of Jan Bijlsma and Grietje Ates Zijlstra.Born 23 Apr 1921 Irnsum, died 9 Mar 2010 Grouw, age 88 years, buried Oosterwierum | |||