Petrus Nieuwenhout, born circa 1852 (?), died before November 8, 1900, aged at most 48 years.

Petrus was married to
Neeltje Steenbeek, born circa 1856 (?).

• 1 : Jochem Nieuwenhout, born in Kuinre on February 9, 1879, manager steam dairy factory, died in Delfstrahuizen on January 16, 1934, aged 54 years.
  Jochem was married in Leeuwarderadeel on November 8, 1900, at the age of 21 to Antje Feenstra (aged 21 years), born in Goutum on April 15, 1879, daughter of Pieter Gerrits Feenstra (journeyman baker and baker) and Meindertje Wiegers Overdijk, died in Leeuwarden on September 24, 1948, aged 69 years.