Frederik George van Haastert, born circa 1863 (?).

Frederik was married to
Annette Swart, born circa 1867 (?).

• 1 : Ferdinand van Haastert, born in Batavia on September 30, 1890, died on March 17, 1940, aged 49 years.
  Ferdinand was married in Amsterdam (1) to Catharina Johanna Feenstra, born in Utrecht on February 22, 1890, daughter of Ulbo Klazes Feenstra (postoffice clerk, stationchef (1882) and stationmaster) and Tytje Reinouts van Haga, died in Batavia on November 11, 1923, aged 33 years.
  Ferdinand was married in Batavia on March 21, 1929, at the age of 38 (2) to N.N..