14 October 1805 Clapham, Holy Trinity, Surrey, the son of William Wilberforce & Barbara Ann Spooner. Date of birth recorded in entry. 
Name The Rt Rev SAMUEL Wilberforce
Entered Jan. 27, 1823
Hon. LL.D., 1860 [3rd s. of William (1776), M.P. B. Sept. 1, 1805, at Clapham.] Matric. from Oriel College, Oxford, Jan. 27, 1823; B.A. (Oxford) 1826; M.A. (Oxford) 1829; B.D. and D.D. (Oxford) 1845. Hon. Fellow of All Souls, 1871. Ord. deacon (Oxford), 1828; priest, 1830; C. of Checkendon, Oxon., 1828-9. R. of Brightstone, Isle of Wight, 1830-40. Preb. of Winchester, 1840-4. R. of Alverstoke, Hants., 1840-5. Archdeacon of Surrey, 1841-4. Dean of Westminster, 1844-5. Bishop of Oxford, 1845-69. Bishop of Winchester, 1869-73. Married, June 11, 1828, Emily, eldest dau. of the Rev. John Sargent, R. of Lavington, Sussex, and had issue. Author, The Life of William Wilberforce by his Sons (Isaac and Samuel); A History of the Protestant Episcopal Church in America; A Selection of Psalms and Hymns for Public Worship; killed instantly when thrown from his horse, whilst riding on the Surrey Downs, July 19, 1873; buried in Lavington churchyard. Brother of the above and William (1817). (Boase, III. 1343; Al. Oxon.; Clergy List; Crockford; D.N.B.)
The marriage of Samuel Wilberforce & Emily Sargent was conducted on 11 June 1828 Woolavington, Sussex
1841: Tatcham, Surrey, "Ormley" Lodge. A clergyman. 
1851: Wasing, Berkshire, "Wasing Place". A visitor, "Lord Bishop of Oxford". 
1861: Cuddesdon, Oxfordshire, "Bishops Palace". A widower. "Bishop of Oxford & High Almoner"
19 July 1873, Dorking, Surrey, age 67. Killed instantly having been thrown from a horse on Surrey Downs. Burial, Lavington, St. Peter, Sussex.
It may be possible to confirm family relationships with Samuel by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA test-takers in his direct paternal line.
Mitochondrial DNA test-takers in the direct maternal line: