Johannes Maring, douaneambtenaar and Kommies belastingen, born in Loppersum on January 22, 1894, died in Rotterdam on October 21, 1968, buried in Rotterdam (Alg. Zuiderbegraafplaats), aged 74 years, son of Jan Maring (boerenknecht and smidsknecht) and Ida Havinga (boerenmeid).

Johannes was married in Stedum on October 12, 1921, at the age of 27 to
Geertje Bolt (aged 28 years), born in Garsthuizen (gem Stedum) on September 6, 1893, died in Rotterdam on October 8, 1976, aged 83 years, daughter of Jakob Udes Bolt (boerenknecht) and Harmina Delis (boerenmeid).

• 1 : Jan Maring, kantoorbediende, born in Kapelle (Zeeland) on October 23, 1922, died in Zwolle on October 16, 1944, buried in Loenen, aged 21 years.
  

• 2 : Jacob Maring, chauffeur, born in Rotterdam on December 21, 1924, died there on March 5, 1998, aged 73 years.
  Jacob was married in Rotterdam on October 1, 1952, at the age of 27 to Belia Boon (aged 23 years), born in Rotterdam on June 24, 1929, daughter of Hendrik Boon and Willemina Zoetekouw.
  

• 3 : Ida Maring, born in Rotterdam on March 11, 1927.
  Ida was married in Rotterdam on July 28, 1955, at the age of 28 to Roelof Melenberg (aged 32 years), born in Vroomshoop on May 2, 1923, died on January 28, 2002, aged 78 years, son of Albert Melenberg and Johanna Ruiter.
  

• 4 : Herman Maring, hoofdcommies rijksbelastingen, gepensioneerd, born in Rotterdam on May 21, 1928.
  Herman was married in Rotterdam on May 31, 1956, at the age of 28 to Jannetje van den Broek (aged 22 years), docente EHBO, born in Rotterdam on April 26, 1934, daughter of Andries van den Broek (hoofd keurmeester gemeente Rotterdam) and Evertje Nijmeijer (verpleegster zwakzinnigenzorg).