He is married to (Not public).
They got married on December 13, 1961 at Rotterdam , he was 20 years old.Source 1
P.N Kalkman Pag. 212.
Xldf. ARIE GOVERT KALKMAN. Geb. Rotterdam 9 jan. 1941. Havenarbeider. Zn. van Dirk Johannes Kalkman en Pietertje Krijgsman. Tr. Rotterdam 13 dec. 1961 Huibertha Johanna van Walsum,stationsbeambte, en Wilhelmina Louisa Verkuil.