Jan volgde zijn broer enkele jaren naar New Nederland door bemiddeling van zijn oom Kilian werd hij aangesteld als Gecommitteerde.
Jan (Johan, Johannes) van Twiller
Referred to by Jeremias van Rensselaer as Neeff Jan van Twiller (cousin Jan van Twiller). He was probably a younger brother of Wouter van Twiller, or perhaps, of Aert Goossens van Twiller, who on July 26, 1663, executed in the colony a power of attorney to Mr. Peel van Hennedela (Peel van Hennekeler), schout at Nieukerck, to demand of his brother in law Aert Janz, shoemaker at Nieukerck, an accounting of the estate of his deceased father Goosen van Twiller and his mother Enneken. Jan van Twiller was one of the Gecommitteerden (commissioners) in the colony in 1649, and at that time boarded with van Slichtenhorst. From July 24, 1652, to July 24, 1657, he held the office of Raedts persoon (councilor), at an annual salary of f50. He probably left the colony in 1657.
http://vanhoesen.blogspot.com/
Munsell Albany Anals Vol 4
In Bevereijck were
Johannes van Twiller, merchant, from 1643 until 1663
and Aert Goossens van Twillert from 1661 until 1684
Na zijn terugkeer in Nijkerk werd Jan in 1668 opgenomen in het college van regenten van het weeshuis. Hij volgde daarmee zijn vader Rijckert op.
Margarita van Twiller 1663
Ryckert van Twiller 1665