St Drostán of Deer
- Served the Picts of Aberdeenshire c.500. Includes photographs of location associated with him and a map of his foundations.
- http://www.cushnieent.force9.co.uk/CelticEra/Saints/saints_drostan.htm

Who was Drostan?
- Pupil of St Columba, with whom he founded a church at Aberdour and a monastery at Deer, in Scotland, where he died c. 606.
- http://www.drostan.org/Drostan/about.php

Saint Drostan In Caithness
- Detailed article about St Drostan's work and foundations, with discussion of the historical research developed since the 18th century.
- http://www.caithness.org/history/articles/saintdrostan.htm

St. Drostan
- Scottish abbot and later hermit, fl. about 600. Also known as St. Drustan, Dustan, or Throstan. Feast day: 15 December.
- http://www.newadvent.org/cathen/05161a.htm