The Political Graveyard
- Lists of US politicians who died as a result of equestrian and carriage mishaps.
- http://politicalgraveyard.com/death/horse.html

G. Carson's Cunningham Carriages
- Drawings of carriages and photographs of automobiles from the personal estate of G. Carson Baker, designer and senior representative for the company during the first quarter of the 20th century. US.
- http://www.obs-us.com/people/karen/gcarson/cunningham.htm