Harm Cornelis Maring, born in 't Zandt, christened there on February 19, 1775, died in Baflo (huis 24) on July 27, 1826, son of Harm Derks and Antje Harms.

He was married in Uithuizermeeden on November 15, 1801 (1) to
Antje Jans, born in Uithuizermeeden on March 14, 1777, died in Oldenzijl on October 28, 1814, daughter of Jan Eltjes and Geertje Jacobs.

• 1 : Jan Harms, born in Oldenzijl on November 25, 1804, christened there on December 9, 1804, died in Andel on March 14, 1857.
  He was married in Baflo on July 15, 1828 to Anje Hendriks Bosma, born in Baflo on April 12, 1803, christened there on April 24, 1803, daughter of Hendriks Kornelis Bosma and Frouke Roelfs.
  

• 2 : Eltje Harms, born in Oldenzijl on February 27, 1808, died in Warffum on January 28, 1862.
  He was married in Warffum on December 12, 1836 (1) to Trijntje Harms Werkman, born in Warffum on July 23, 1815, died there on March 11, 1841, daughter of Harm Jakobs Werkman and Anje Ennes Zuidema.
  He was married in Warffum on December 5, 1844 (2) to Janna Jans Tillema, born in Uithuizen circa 1814, died in Warffum before 1862, daughter of Onbekende Vader and Tjaartje Jakobs Tilma.
  (She was widow of Jurrien Everts Graver, died before 1844.)
  

• 3 : Kornelis Harms, born in Oldenzijl (gem Uithuizermeeden) on April 6, 1814, died in Warffum on November 12, 1888, buried there.
  He was married in Warffum on March 2, 1839 to Gepke Geerts Eling, born in Warffum on November 1, 1814, died there before 1888, buried there, daughter of Geert Jans Eling and Hilje Rennes.
  

He was married in Baflo on October 15, 1815 (2) to
Trijntje Sierts, born in Uithuizen on February 10, 1783, died in Tinallinge (gem Baflo) on July 16, 1860, daughter of Siert Pieters and Martje Freerks.
(She was widow of Sijmen Geerts Berghuis, born circa 1766, died in Tinallinge (gem Baflo) on July 18, 1814.)

• 4 : Marten Harms, born in Tinallinge on September 2, 1816, died there on May 18, 1899.
  He was married in Baflo on March 15, 1845 to Janna Luitjes Sieuwerts, born in Baflo on March 13, 1821, died in Tinallinge on October 20, 1898, daughter of Luitje Sieuwerts and Trijntje Willems Meijer.