Whitaker was elected a foundation fellow of his college in 1834 and the next year became a university lecturer in classics. He was ordained a deacon on 4 June 1837 and took the orders of a priest on 27 May the following year. In 1840 he was appointed Vicar of
Oakington, Cambridgeshire, a living in the gift of his college. He served as the first provost and professor of divinity of the
University of Trinity College, now federated with the
University of Toronto, from its opening in 1852 (when it had just thirty students) until his retirement in 1881. From 1875 he was also Archdeacon of York, Toronto. After ending his career in Toronto, Whitaker retired to his home county of Wiltshire as Rector of
Newton Toney, near
Salisbury, England. He died in August 1882 and was buried at Newton Toney. ==Family==