He was educated at Eton College, where he was first noted as a schoolboy cricketer playing against Harrow School in 1822,[4] and Trinity Hall, Cambridge.
[4][7] These protections were gradually introduced in response to the development of roundarm bowling from 1827.
Until then, the role of the wicketkeeper had been "offensive" rather than "defensive" in that he was primarily concerned with looking for stumping chances, but the increased pace of roundarm forced wicketkeepers to improve their ability to stop the ball and so prevent byes.
By 1836, the Kent wicketkeeper Ned Wenman was using gloves but it is not known if Jenner himself adopted them in the latter part of his career.
[7] In first-class cricket, he was associated with Cambridge University, Kent XIs and MCC.