Catholic Encyclopedia: Saints Quirinus
- Discusses several saints named Quirinus: St. Quirinus of Rome; St. Quirinus the Jailer; St. Quirinus of Croatia; St. Quirinus of Tivoli; and a St. Quirinus who was said to have been martyred with his companion Nicasius and whose feast is 11 October.
- http://www.newadvent.org/cathen/12615a.htm

Catholic Encyclopedia: Saints Quinctianus
- Several saints named Quinctianus appear in martyrologies, but we know next to nothing about most of them.
- http://www.newadvent.org/cathen/12613b.htm