Jacob Jacobs, born circa 1619, son of Jacob Buwes and Ied Jetses, died in the year 1658 or 1659, aged 39 years to 40 years.

Jacob was married before 1656, at the age of at most 37 (1) to
N.N. (aged at most 36 years), born circa 1620 (?), died before 1656, aged at most 36 years.

• 1 : Jancke Jacobs, born between 1638 and 1648.
  Jancke was married circa 1668 in church, at the age of 20 to 30 to Claes Melis (aged approximately 25 years), born circa 1643.
  

Jacob was married after 1656 in church, at the age of at least 37 (2) to
Antie Pytters (aged at least 32 years), born circa 1624.

• 2 : Jacob Jacobs, christened in Achlum on August 9, 1657.