Pietertje Wijtsma, born circa 1852 (?).

Pietertje was married to
Sipke Hiemstra Riewald, born circa 1848 (?), cooper.

• 1 : Akke Riewald, born in Harlingen on March 3, 1875.
  Akke was married in Harlingen on May 14, 1896, at the age of 21 to Jacob Baukes Feenstra (aged 29 years), born in Oosterlittens on May 20, 1866, son of Bauke Ottes Feenstra (journeyman baker and baker) and Grietje Jacobs Piersma, baker, died in Leeuwarden on March 6, 1931, aged 64 years.