John Houghton
- Profile of the English martyr.
- http://www.catholic-forum.com/saints/saintj5v.htm

Blessed John Houghton
- Biography of the Carthusian martyr, who died in 1535, and details on some of his companions in martyrdom.
- http://www.newadvent.org/cathen/08465a.htm

John Houghton, O. Cart.
- Hagiography of the martyred prior.
- http://www.saintpatrickdc.org/ss/0504.htm#john