Complex sentence: While there he gained a B.A. degree from King's College London, he served as an Assistant Master at Leeds Grammar School, before becoming (Vicar) of Edlington by 1875 and then Vicar of Melbecks sometime around 1881.
Split into simpler sentences: While there he gained a B.A. degree from King's College London. He served as an Assistant Master at Leeds Grammar School, before becoming (Vicar) of Edlington by 1875 and then Vicar of Melbecks sometime around 1881.