Day, William flourished 1666

William Day was an English clergyman, vicar of Mapledurham, Oxfordshire and also divinity reader in his majesty's chapel of St. George in Windsor Castle.

Dictionary of National Biography, Volume 14 (1888) (see page 244 for entry on William Day)
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An Exposition of the Book of the Prophet Isaiah. By the endeavors of W. Day, M.A., late Fellow of King's College in Cambridge: and now An Unworthy Servant of God in the Gospel, at Maple-Durham in the County of Oxon. - 1654
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