mike_s
Contributor
DawgDiver:Probably a mustang. Out in the west during this period they still had a lot of wild mustangs running free, so it required a pretty hardcore cowboy to break them this way.
I was going to say "it was under a-buck". (since it was a quarter)
Back to your first answer, I'd say this one historically has a better chance of being a 'real quarter horse' than the other one, based on the information you provided. Mustang is prob much more likely though.