His second son, Jan Hendrik, born at "Opperhoofden", the chief of the Nederlandsche Handel-Maatschappij (the successor to the Dutch East India Company) trading post in Nagasaki, Japan.
His second son, Jan Hendrik, born at Batavia in 1849. In July 1852, he was appointed to the post of "Opperhoofden", the chief of the Nederlandsche Handel-Maatschappij (the successor to the Dutch East India Company) trading post in Nagasaki, Japan.