St. Simon the Apostle, also known as St. Simon the Zealot.

Very brief.

Hagiography of Simon the Zealot.

Profiles of SS. Simon and Jude, with prayer in traditional and contemporary language.

From Alban Butler's Lives of the Saints.

Illustrated, with links.

St. Simon Zelotes, sometimes called Simon the Less. Christian legend associates St. Simon with Persia or England.

Short, suitable for children.