Jannetje van den Broek, docente EHBO, born in Rotterdam on April 26, 1934, daughter of Andries van den Broek (hoofd keurmeester gemeente Rotterdam) and Evertje Nijmeijer (verpleegster zwakzinnigenzorg).

Jannetje was married in Rotterdam on May 31, 1956, at the age of 22 to
Herman Maring (aged 28 years), hoofdcommies rijksbelastingen, gepensioneerd, born in Rotterdam on May 21, 1928, son of Johannes Maring (douaneambtenaar and Kommies belastingen) and Geertje Bolt.

• 1 : Eveline Gezina Maring, arts, born in Rotterdam on May 5, 1957.
  Eveline was married in Heerenveen (Crackstate) on September 2, 1988, at the age of 31 to Swan Koen Oei (aged 32 years), cardioloog, born in Bandung on February 19, 1956, son of Tjien Tek Oei (bedrijfsjurist) and T.G. (Bea) Gouw.
  

• 2 : Johannes Andries Maring, huisarts in Tolbert, born in Rotterdam on April 15, 1959.
  Johannes was married in Leek on August 30, 1997, at the age of 38 to Maaike Feenstra (aged 34 years), docente frans, born in 's-Gravenhage on May 20, 1963, daughter of Jan Feenstra (onderzoeker TNO, gepensioneerd) and Elizabeth Willie Marie Terpstra (bibliothecaresse, na haar trouwen huisvrouw).
  

• 3 : Herman Maring, docent geschiedenis HanzeHogeschool, born in Rotterdam on March 10, 1962.
  Herman was married in Groningen on December 1, 2000, at the age of 38 to Maria Johanna Louise Wolfs (aged 37 years), docente kunstgeschiedenis HanzeHogeschool, born in Eindhoven on February 22, 1963, daughter of Antoon Gerard Wolfs (directeur GAK) and Maria Anthonia Cornelia van Helvoort.