Joost (Justus) Six (1621–?), merchant and translator employed by the VOC, stationed in Bengal and Canton (China). Brother of the poet Joannes Six van Chandelier.

Abraham Six (c. 1632–c. 1680), merchant employed by the VOC, stationed in the East Indies. Brother of the poet.

Johannes Six van Chandelier (c. 1664–1721), merchant employed by the VOC, stationed in the East Indies. Son of Abraham Six and namesake of the poet.

Simon Dilman (1604–1666), a doctor in Amsterdam, who was Six’s cousin by marriage. Dilman was married to Six’s cousin, Janneke Hartgers. Her mother, Janneke Six, was the sister of Six’s father, Jacob Six, and was married to Hartger Wouter. Simon Dilman included the orphans of the uncle of Joannes Six van Chandelier, Abraham Six, in his household for a period.

Jacob Dilman (1634–1663), the son of Simon Dilman, was apprenticed to the Six family business, and became a merchant-druggist.

Joost Hartgers, publisher and printer in Amsterdam, who was the son of Hartger Wouters and his third wife, Janneke van Baelbergen.

Johannes Hoornbeeck (1617–1666), a preacher and professor of theology, who was a cousin of Six and of Simon Dilman. His parents were Tobias Hoornbeeck, a merchant, and Janneke Baerts. Both were from Haarlem. Janneke Baerts was the daughter of Gillis Baert and Susanne Six, a sister to Janneke Six and Jacob Six, the father of the poet.

Hans Baert, merchant in Haarlem, was related to both Joannes Six van Chandelier and Johannes Hoornbeeck. He was the brother of Janneke Baert, thus the son of Gillis Baert and Susanne Six.