Rienk de Groot, born in Harlingen on March 5, 1882, son of Dirk de Groot (dock hand, docker, docker, docker, workman, dock hand, dock hand, workman, dock hand, dock hand, dock hand and scheepssjouwerman) and Maria Tjerks, docker, died in Harlingen on December 31, 1984, aged 102 years.

Rienk was married in Harlingen on July 7, 1902, at the age of 20 to
Catharina van der Meulen (aged 19 years), born in Harlingen on February 20, 1883, daughter of Bertus van der Meulen and Antje Onsman, died there on October 4, 1961, aged 78 years.

• 1 : Mieke de Groot, born in Harlingen on October 19, 1902, died there on October 22, 1902, aged 3 days.
  

• 2 : Antje de Groot, born in Harlingen on February 25, 1904, died in Amsterdam on October 20, 1989, aged 85 years.
  Antje was married in Amsterdam on November 23, 1922, at the age of 18 to Nicolaas Vogel (aged 25 years), born in Amsterdam on September 20, 1897, died there on February 20, 1974, aged 76 years.
  

• 3 : Stillborn daughter, born in Harlingen on January 28, 1905.