(1) He is married to Dina van Harnik.
They got married before 1747 at Amsterdam.
(2) He is married to Helena Döling.
Their notice of marriage was on August 24, 1759 in Amsterdam.Source 2
They got married on August 29, 1759 at Sloterdijk.Source 3ook Kocq, Kok
Hendrik Cocq van Leijden, eerdere vrouw Geertruij de Graaf en Helena Doling van Wenden, RK 39 jaar
Hendrik Cocq en Helena Doolingh