John Caird and Edward Caird
- One-paragraph review of the impact of these two brothers on the English-language philosophical tradition. From a larger work on Anglo-American literary history.
- http://www.bartleby.com/224/0135.html

Hegel
- Full text of Caird's biography and philosophical study of this philosopher. First published in 1883, this was a founding text of English-language Hegelianism.
- http://www.gwfhegel.org/Books/CAIRD.html

Edward Caird
- Internet Encyclopedia of Philosophy article by William Sweet. Reflects on the intellectual aspects of Caird's life.
- http://www.utm.edu/research/iep/c/caird.htm