 Siebren Altenburg, son of Hessel Jans Altenburg and Ymkje Maria Andringa.Born 29 Apr 1901 Tirns, died 13 Aug 1983 Sneek, age 82 years, buried Joure Married to:  Jeannette Mosterman, daughter of Jan Mosterman and Catharina de Jong.Born 14 Apr 1902 Nes, Ameland, died 11 Nov 1978 Buren, Ameland, age 76 years, buried Joure | |||