You might know a lot about the American Quarter Horse, but what do you know about the Thoroughbred, the Azteca or the Appaloosa?

An A to Z list of horse breeds from the April 1963 issue of Western Horseman.

Steeldust was a scion of the oldest and most aristocratic of American families, the Quarter Horse, a race who, figuratively, could trace one side of the family to the Mayflower and the other to the conquistadores of Spain.