All Saints Margaret Street - Designed by William Butterfield, a red brick composition on three sides of a small courtyard, with a lavish interior decoration of marbles and polychrome tile, and the second highest spire in London. An unofficial site by Matthew Duckett.
St Saviour's Church - Coalpit Heath - Description of the building, the story of its history and its architect, William Butterfield, its mission, activities and organisation.
William Butterfield - Brief notes on this British Gothic Revival architect from Visit Cumbria.
William Butterfield - Photograph and brief biography of this Gothic Revival architect from Spartacus Educational.
William Butterfield (1814-1900) - Brief biography of this Victorian exponent of the Gothic revival in Great Buildings Online.
William Butterfield (1814-1900) - Brief notes on the Gothic Revival architect William Butterfield from Bob Speel.
William Butterfield Photograph - Butterfield was the architect of St. John the Evangelist church, Clevedon. Site includes a photograph of William Butterfield, and information about the church.