(1) He is married to Megtelt Reintsen Vriesekolk.
They got married on April 18, 1733 at Almen.Source 1
18.04.1733 Derk Stockhaer wed. van Berentien Henriks en Megtelt Reintsen van't Vriesekolk beide onder Herfsen
(2) He is married to Maria Boschloo.
They got married on November 11, 1741 at Almen.Source 2
11.11.1741 Derk Stockhaar wed. van Mechtelt Vriesekolk onder Almen en Maria Boschloo onder Warnsveld.