Adam Cartwright rode a 7/8 Thoroughbred gelding. It was a sorrel with three white socks, a marking on its front left leg that looked like an upside down "v", and a blaze down its face.
Ben rode a buckskin named Buck. Adam rode a 7/8 sorrel thoroughbred named Sport. Hoss or Eric rode a dark brown horse named Chubb or Chubby. Little Joe rode a black and white pinto named Cochise whom he often called Cooch.
The Cartwrights could and did ride horses. In fact, their horses became as familar to America as the Cartwright men themselves. Patriarch Ben Cartwright always rode the buckskin, appropriately named Buck. Adam, the oldest of the Cartwright sons always rode a chestnut named either Beauty or Sport. Hoss, the middle son, rode a Quarter Horse X named Chub and youngest son Little Joe always rode the flashy black and white Paint named Cochise.
Pernell Roberts (Adam) rode Beauty but Beauty was no cooperating so they picked another horse for him.
Gene Autry
It seems that the buckskin colored horse that Ben Cartwright rode in Bonanza was the same horse that was used by Marshal Matt Dillon in the series Gunsmoke.
When he was in England to film Sleepy Hollow Mr. Depp aquired 'Gunpowder', the gray horse he rode in the movie. The horse has mistakenly been identified as an Andalusian but he was not. Nor was he a Fresian, which was the breed of horse that the Headless Horseman rode.
Napoleon's horse at Waterloo was named Marengo, after the Battle of Marengo. It was the same horse that carried the Emperor at Austerliz, Jena and Wagram.
He never rode a horse. He rode a donkey.
And the Horse They Rode In On was created on 1990-09-04.
A horse that rode too young of course!
I rode a horse.
The horseman representing war rode a red horse.