(1) He is married to Anna Laurens Molius.
Permission for the marriage has been obtained in Ovezande on April 12, 1721.Source 1
476. Otr. 12 april Ovezande, attestatie gegeven 28 april, Mathijs van de Pluim, jm. van Zierikzee, en Anna Laurens Molius, jd. van Luik.
(2) He is married to Willemijntje van Verre.
Permission for the marriage has been obtained in Kruiningen on January 7, 1729.Source 1
585. Otr. 7 januari, attestatie gegeven 17 februari, Mathijs van der Pluim, wr. Anna Laurensdr. [Molius], en Willemijntje van Verre, geboren te Kloetinge, beide wonende te Kruiningen.
(3) He is married to Pieternella Pietersdr Trewel.
Permission for the marriage has been obtained in Kruiningen on December 22, 1729.Source 1
They got married on January 27, 1730 at Kruiningen.Source 1596. Otr. 22 december, Tr. 27 januari 1730, Mathijs van der Pluim , laatst wr. van Willemijntje van Verre, en Pieternella Pietersdr. Trewel, jd. van Willebrode in Brabant.
Kruiningen index ref. trouwen 1671-1810 https://geneaknowhow.net/script/zee/Trouwen%20Kruiningen%201671-1810.pdf