Jantje Gerardus Nijenhuis, born circa 1812 (?).

Jantje was married to
Sikke Watses Nauta, born in Harlingen on July 2, 1811, christened there on July 14, 1811, son of Watse Eeltjes Nauta (meester schoenmaker) and Lutske Sikkes van der Laan, sailor.

• 1 : Anna Margrieta Nauta, born in Harlingen circa 1835.
  Anna was married in Harlingen on December 16, 1858, at the age of approximately 23 to Haye Gerbens Tigchelaar (aged 23 years), born in Harlingen on February 11, 1835, son of Gerben Hayes Tichelaar (workman) and Pietje Yeps van der Werf, sailor and merchant.