Firth's Celtic Scotland: St. Ternan
- Short biography of the third abbot of Candida Cassa, who served the Picts of north-east Scotland.
- http://www.cushnieent.force9.co.uk/CelticEra/Saints/saints_ternan.htm

Ternan of Culross
- This brief note places the saint in the fifth century.
- http://www.saintpatrickdc.org/ss/0612.htm#tern

Catholic Online: St. Ternan
- Also known as Torannan. Very brief profile.
- http://www.catholic.org/saints/saint.php?saint_id=2178

Catholic Encyclopedia: St. Ternan
- Brief biography of this sixth-century bishop of the Picts.
- http://www.newadvent.org/cathen/14518b.htm