Later, in 1876, Williamson was reissued a Bachelor of Arts degree certificate from the University of New Zealand.
[1] Born in about 1849 near Coventry, Warwickshire, England, Williamson emigrated to New Zealand with his parents in 1851.
After completing his university studies, Williamson became a schoolteacher, first at Turakina School (1874–1881) and then at Patea.
In 1892 he was appointed headmaster of Taita School in Lower Hutt, where he remained until retiring in 1911.
Williamson died at his son's residence in Puketaha, near Hamilton, on 2 August 1928.