Career
According to the RKD he was a pupil of Adolf le Comte and Oswald Wenckebach. He joined the Royal Academy of Art in The Hague at the age of 19, where he was a pupil of Le Comte together with Gerrit David Gratama. Under his direction, the prints and drawings of the Teylers cabinet were shown in various exhibitions, and on Pieter Teyler"s birthday, he personally displayed special selections of prints and drawings to the public in "kunstbeschouwingen" in the Teyler tradition.
As an artist he made numerous portraits of various people in Haarlem, including group portraits in the Haarlem tradition for the regents of the Doopsgezinde Weeshuis.
During his tenure he reorganized the Teylers showrooms, and placed important prints and drawings on permanent display for the first time by mounting them on the wall in frames covered by curtains, to protect them from damage by daylight that is traditionally the main light source in the museum. Today prints and drawings are only put on display in the print room and book room, where there are no windows.
He was also the curator during World World War II, and oversaw the conservation of the collection in bunkers in the nearby dunes. January became the next Casteleyn, and more than 20 years after the death of his father, he also became art curator of the Museum.
