Stijntje married Theunis Huijberts Demper, son of Huijbert Theunisz Demper and Jannigje Pieters, on 3 June 1671 in Leerdam 16.,70 (Theunis Huijberts Demper was born in Meerkerk 16,70 and was christened on 22 November 1629 in Meerkerk 70.)
Stijntje also married Evert Jans Kieviet on 10 February 1687 in Ameide.149 (Evert Jans Kieviet was born circa 1660 in Ameide 149.)

Spouses/Children:
1. Theunis Huijberts Demper
• Grietje Theunisdr Demper
• Huijbert Theunisz Demper+
• Huijg Theunisz Demper
• Claas Theunisz Demper
• Grietje Theunisdr Demper
• Huijg Theunisz Demper
• Grietje Theunisdr Demper+
• Cornelis Theunisz Demper
2. Evert Jans Kieviet