Helena, St
- Short biography of the mother of Constantine. From the 1911 Encyclopædia Britannica.
- http://encyclopedia.jrank.org/HEG_HIG/HELENA_ST_c_247_c_327_.html

Catholic Online: St. Helena
- Biography accepts the theory that she was born in England.
- http://www.catholic.org/saints/saint.php?saint_id=123

The Ecole Glossary: Helena
- Short biography, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/helena.html

Saint Helena, Widow
- From the book "Lives of Saints," published by John J. Crawley.
- http://www.ewtn.com/library/MARY/HELENA.htm

The Story of the Discovery of the Cross
- The traditional account of how St. Helena found the true Cross of Christ.
- http://landru.i-link-2.net/shnyves/Discovery_of__Cross.html

Helena, Empress and Widow
- Biographical profile. Includes prayer in traditional and contemporary language.
- http://elvis.rowan.edu/~kilroy/JEK/08/19.html

Patron Saints Index: Helena
- Illustrated profile, with links.
- http://www.catholic-forum.com/saints/sainth01.htm

Catholic Encyclopedia: St. Helena
- The mother of Constantine the Great, she died about 330.
- http://www.newadvent.org/cathen/07202b.htm