 Jantje "Joanna" Posthumus, daughter of Gerrit Posthumus and Jitske Kok.Born 12 Nov 1880 Workum, died 15 Jan 1912 Delft, age 31 years, buried Delft Married to:  Jan Pieter van Willigen, son of Cornelis Wilhelmus van Willigen and Johanna Catharina Maria Spruyt.Born 6 Jan 1885 Delft, died 22 Jun 1917 Delft, age 32 years, buried Delft | |||