Lucius I
- Brief account of his pontificate, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/luciusi.html

St. Lucius
- Brief account of his pontificate. From the book "Popes Through the Ages," by Joseph Brusher.
- http://www.cfpeople.org/Books/Pope/POPEp22.htm

Pope St. Lucius I
- Biographical article on this pope, exiled for a time, who reigned less than one year, and died in 254. From the Catholic Encyclopedia.
- http://www.newadvent.org/cathen/09411a.htm