Born: June 6, 1820, Chislehurst, Kent, England.
Died: September 18, 1898, Preston-Next-Wingham, Eastry, Kent, England.
Buried: St. Nicholas Church, Chislehurst, Kent, England.
Jenner was the son of British parents in India. He married three times: to Anna Pond (died a few months after their wedding), Louise Loizeaux (died 1938), and Mary Carter Tyler (married 1940).
Jenner was educated at Harrow and Trinity College, Cambridge (LLB in honors 1841, DD 1867).
He was ordained in 1843 and held curacies at Chevening, Kent; St. Columb, Cornwall; St. Anthony, Cornwall; Leigh, Essex; and Brasted, Kent. He was appointed vicar of Preston-Next-Wingham, Kent, in 1854, and first bishop of Dunedin in 1866.
In 1870, he returned to his former position at Preston-next-Wingham. He resigned his bishopric in 1871.