Complex sentence: In 1820 he was elected fellow of Oriel College, took holy orders in 1821, and became one of the tutors in 1823 after receiving his M.A. Jelf became was master of the schools in 1824, and classical examiner in 1825.
Split into simpler sentences: In 1820 he was elected fellow of Oriel College, took holy orders in 1821, and became one of the tutors in 1823. He was master of the schools in 1824, and classical examiner in 1825.