High Quality Content by WIKIPEDIA articles! Grew was born at Atherstone, Warwickshire on 1 November 1607, the third son of Francis Grew and Elizabeth Denison. He was baptised the same day at the parish church of Mancetter, Warwickshire. Francis Grew was a layman, originally of good estate but impoverished by prosecutions for nonconformity in the high commission court and Star-chamber. Obadiah was educated at Reading, under his uncle, John Denison, and was admitted a student at Balliol College, Oxford, in 1624, his tutor being Richard Trimnell. He graduated B.A. on 12 February 1629, M.A. on 5 July 1632. In 1632 he was elected master of the Atherstone grammar school.