Siert Pieters, died before 1815.

He was married to
Martje Freerks, died before 1815.

• 1 : Trijntje, born in Uithuizen on February 10, 1783, died in Tinallinge (gem Baflo) on July 16, 1860.
  She was married (1) to Sijmen Geerts Berghuis, born circa 1766, died in Tinallinge (gem Baflo) on July 18, 1814.
  She was married in Baflo on October 15, 1815 (2) to Harm Cornelis Maring, born in 't Zandt, christened there on February 19, 1775, died in Baflo (huis 24) on July 27, 1826, son of Harm Derks and Antje Harms.
  (He was married before in Uithuizermeeden on November 15, 1801 to Antje Jans, born in Uithuizermeeden on March 14, 1777, died in Oldenzijl on October 28, 1814, daughter of Jan Eltjes and Geertje Jacobs.)