His father, a grandson of Sir Thomas Jenner, Baron of the Exchequer, was a graduate of Brasenose College, Oxford (BA 1727, MA 1730, and BD and DD 1743), and became rector of Buckworth, Huntingdonshire, in 1740; chaplain to George II in 1746; prebendary of Lincoln in 1753; and archdeacon of Bedford in 1756, and of Huntingdon in 1757.
He was admitted as a pensioner at Pembroke Hall, Cambridge, on 14 April 1753, graduating BA in 1757 and MA in 1760; but subsequently migrated to Sidney Sussex College on 19 December 1763.
[b][1] Angus Macaulay in his History of Claybrook, 1791, says that Jenner "had a fine taste for music, and his society was much courted by amateurs of that art", and according to Nichols he was "a good singer of catches and performer at concerts".
In 1770, Jenner published anonymously his only novel, The Placid Man, or Memoirs of Sir Charles Beville, which attained considerable success, and was republished with his name in 1773.
[5]After The Placid Man, Jenner returned to poetry, and another volume of poems, entitled Town Eclogues, was published in 1772; 2nd edition 1773.
He also published separately Louisa, a Tale, to which is added an Elegy to the Memory of Lord Lyttelton, the original manuscript of which came into the possession of his great-nephew, H. L. Jenner, Bishop of Dunedin.