A Prophet of Globalisation: Ignatius Donnelly
- Article by Stephen Holt from On Line Opinion. Looks back on Donnelly as a forerunner of the anti-globalization movement.
- http://www.onlineopinion.com.au/view.asp?article=1337

Ignatius Donnelly and the End of the World
- A fictional presentation of Donnelly returning to modern-day California.
- http://www.stanford.edu/~meehan/donnelly/

Biographical Directory of the United States Congress: Donnelly, Ignatius (1831-1901)
- Key dates of Donnelly's life, with bibliography.
- http://bioguide.congress.gov/scripts/biodisplay.pl?index=D000417

Appleton's Cyclopedia of American Biography: Ignatius Donnelly
- Article from this 1887 biographical compendium, giving information on both Donnelly and his sister.
- http://www.famousamericans.net/ignatiusdonnelly/