In 1826 he was chosen fellow of Oriel and was ordained, among his friends and colleagues being Newman, Pusey and Keble. For a few years he was one of the tutors at Oriel, but the provost, Edward Hawkins, disliked his religious views, and in 1831 he resigned and left Oxford. In 1832 he obtained the living of East Farleigh, Kent, which in 1840 he exchanged for that of Burton Agnes, near Hull. In 1841 he was appointed archdeacon of the East Riding of Yorkshire. About this time Wilberforce became very intimate with Manning, and many letters on theological and ecclesiastical questions passed between them. In 1851 Manning joined the Roman Catholic Church, and three years later Wilberforce took the same step. He was preparing for his ordination when he died at Albano on the 3 February1857. He was pre-deceased by his first wife Agnes Everilda Frances Wrangham(1800-1834) and Jane Legard (d 1854). He was survived by two sons, the younger of whom, Edward Wilberforce (1834-1914), became one of the masters of the Supreme Court of Judicature. Edward's son, Lionel Robert Wilberforce (1861-1944), was in 1900 appointed professor of physics in the University of Liverpool. His other children included:
R.I. Wilberforce assisted his brother, Bishop of OxfordSamuel Wilberforce (1805-1873)to write the Life and to edit the Correspondence of his father. His other writings include: Church Courts and Church Discipline (1843); Doctrine of the Holy Eucharist (1853); Doctrine of the Incarnation in Relation to Mankind and the Church (1848 and later editions); The Five Empires, a Sketch of Ancient History (1840); A Sketch of the History of Erastianism (1851); An Enquiry into the Principles of Church Authority (1854); and a romance, Rutilius and Lucius (1842).