Jan Jurjens Grasman, born circa 1762, died in Heeg on November 3, 1813, aged approximately 51 years.

Jan was married in Heeg on May 15, 1796 in church, at the age of approximately 34 to
Eike Simons Zijlstra (aged approximately 22 years), born in Heeg circa 1774, boerinne, died in Heeg on July 9, 1844, aged approximately 70 years.

• 1 : Geeske Jans Grasman, born in Heeg on May 24, 1797, christened there on June 4, 1797, died in Workum on December 26, 1858, aged 61 years.
  Geeske was married in Wymbritseradeel on June 6, 1818, at the age of 21 to Jelle Reins Bijkerk (aged 25 years), born in Heeg on December 2, 1792, christened there on December 23, 1792, son of Rein Jelles Bijkerk (bargeman) and Hotske Alles Fortuin, worker, barge hand, farmer's hand and worker, died in Workum on July 5, 1857, aged 64 years.
  

• 2 : Symen Jans Grasman, born circa 1798, worker.
  

• 3 : Inne Jans Grasman, born in Broek on December 25, 1803, christened there on February 19, 1804, praamskipper.
  

• 4 : Grietje Jans Grasman, born in Heeg on September 11, 1806, christened there on September 21, 1806.
  

• 5 : Tjerk Jans Grasman, born in Wymbritseradeel on September 13, 1811.