Catholic Encyclopedia - St. William of Perth, also known as St. William of Rochester. Honored as a martyr because he was on pilgrimage to Jerusalem when murdered by his adopted son. www.newadvent.org/cathen/15637a.htm
Catholic Online - Short paragraph casts doubts on his canonization. saints.catholic.org/saints/williamrochester.html
For All the Saints - Points out that St. William of Rochester has two feast days. users.erols.com/saintpat/ss/0523.htm#will
