Catholic Encyclopedia - Pope St. Cornelius, had to contend with the antipope Novatian. When persecution broke out, Cornelius was exiled, and he died a martyr in 253. www.newadvent.org/cathen/04375c.htm
Catholic Online - Biographical portrait of Pope St. Cornelius. saints.catholic.org/saints/cornelius.html
Patron Saints Index - Profile of Pope St. Cornelius. With links. www.catholic-forum.com/saints/saintc32.htm
Popes Through the Ages - Account of the pontificate of St. Cornelius. www.cfpeople.org/Books/Pope/POPEp21.htm
The Ecole Glossary - Short biography of Pope St. Cornelius, by Karen Rae Keck. cedar.evansville.edu/~ecoleweb/glossary/cornelius.html