Klaas Achterhof, born in Uithuizen of Baflo on October 9, 1898, died in Warffum on May 21, 1992, buried there.

He was married in Baflo on March 19, 1926 to
Gepke de Boer, born in Baflo on May 6, 1904, died in Warffum on July 25, 2001, buried there on July 28, 2001.

• 1 : Anna Trijntje, born on July 23, 1926.
  She was married in Warffum on October 10, 1952 to Frederikus Maring, born in Warffum on January 21, 1925, son of Geert Maring and Henderika van der Woude.