Catholic Encyclopedia: St. William of Paris - This appears to be a second article about the same person. Gives a different feast day, and the year of death is one year different. www.newadvent.org/cathen/15636b.htm
Catholic Online - Brief paragraph on St. William of Eskilsoe. saints.catholic.org/saints/williameskilsoe.html
For All the Saints - Biography of St. William of Eskhill, also called William of Eskilsöe or William of Aebelholt. users.erols.com/saintpat/ss/0406.htm#will
