Johannes George Frederik van Son (son of Jacobus Reinhart Hendrik van Son and Clara Frederika Schröder) married Margaretha Jacoba Haver Droeze (daughter of Jakobus Haver Droeze and Helena Elise Emilie Walewijn) on 30 May 1900 in The Hague (certicicate 657). At the time he was 'tweede luitenant infanterie van het Oost Indisch leger' and 26 years of age, born in Benkoelen. The bride was 21 years old and born in Den Helder, NL. They divorced 10 feb 1911 in Amsterdam, NL.
Margaretha Jacoba remarried in The Hague on 4 July 1917with Mijndert Butter (art painter). Mijder than was 40 years old, born in Den Helder as son of Machiel Butter and Clara Antonia van Hulst.
Johannes George Frederik died 12 February 1948 in the Hague (death certificate no. B323 as spouse of Hendrika Wilhelmina Vogel