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Male Pieter Nicolaas Kalkman Click to view Pieter Nicolaas Kalkman in the family tree

Pieter Nicolaas was born in 1908.1   Pieter Nicolaas' father was Pieter Nicolaas Kalkman and his mother was Wilhelmina Sophia Van Stight Thans.  His paternal grandfather was Herman Jan Kalkman.  He was an only child.  He died at the age of 87 on April 30th, 1995 in Rotterdam, Netherlands.1 

Family Details of Pieter Nicolaas' family with Marie Margarete Gretel Kropp

1 phelps.FTW
Further source/citation:
World Family Tree Vol. 22, Ed. 1 @ Tree #2589