Johannes Andries Maring, General Practitioner in Tolbert, born in Rotterdam on April 15, 1959, son of Herman Maring (hoofdcommies rijksbelastingen, gepensioneerd) and Jannetje van den Broek (docente EHBO).

Johannes was married in Leek on August 30, 1997, at the age of 38 to
Maaike Feenstra (aged 34 years), teacher French language, 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).

• 1 : Herman Jan Maring, born in Groningen on July 12, 1994.
  

• 2 : Elisabeth Jannetje Maring, born in Groningen on October 23, 1996.
  

• 3 : Eltjo Cornelis Maring, born in Drachten (gem Smallingerland) on May 12, 1999.