Harmanus Engelbertus de Vries, born on June 24, 1810, christened in Harlingen on July 1, 1810.

Harmanus was married in Leeuwarden on May 17, 1835, at the age of 24 to
Doetje Jacobs Feenstra (aged 25 years), born in Harlingen on May 7, 1810, christened there on May 27, 1810, daughter of Jacob Halbes Feenstra (peat barge proprietor and worker) and Froukje Watzes Pruiksma.

• 1 : Pieter de Vries, born in Leeuwarden on September 7, 1837, died there on September 25, 1837, aged 18 days.
  

• 2 : Froukje de Vries, born in Leeuwarden on March 11, 1839, died there on April 23, 1843, aged 4 years.
  

• 3 : Jacob de Vries, born in Leeuwarden on January 29, 1841, died there on February 22, 1843, aged 2 years.
  

• 4 : Petrus de Vries, born in Leeuwarden on April 16, 1843, died there on December 20, 1855, aged 12 years.
  

• 5 : Froukje de Vries, born in Leeuwarden on March 24, 1845, died there on July 4, 1853, aged 8 years.
  

• 6 : Hiltje de Vries, born in Achtkarspelen on October 11, 1847, died there on September 12, 1848, aged 337 days.
  

• 7 : Hiltje de Vries, born in Achtkarspelen on July 15, 1849, died in Leeuwarden on June 9, 1886, aged 36 years.
  Hiltje was married to N.N..