Gerlof Alberts Katoen, born circa 1812 (?), died before February 20, 1873, aged at most 61 years.

Gerlof was married to
Hendrika de Jong, born circa 1816 (?).

• 1 : Dirk Katoen, born in Harlingen circa 1839, stuurman.
  Dirk was married (1) to Alida Zwaal, born circa 1839 (?), died before February 20, 1873, aged at most 34 years.
  Dirk was married in Harlingen on February 20, 1873, at the age of approximately 34 (2) to Harmke Meintes Tigchelaar (aged 33 years), born in Harlingen on June 2, 1839, daughter of Meinte Heerts Tichelaar (carpenter, timmermansknegt, huistimmerman, meester timmerman and huistimmerknecht) and Mettje Johannes Godthelp (grocer), dressmaker.