Blessed William Richardson
- Very short biographical profile of the martyr, who was beatified in 1929.
- http://www.saintpatrickdc.org/ss/0217.htm#will

Ven. William Richardson
- Alias William Anderson, ordained in Spain, was martyred 17 February, 1603. The last martyr during the reign of Queen Elizabeth I.
- http://www.newadvent.org/cathen/13046a.htm