Jerry Brown, belonged to Hudkin Bros. Movie Stable, but was so popular he was used by most of the stables. Jerry was a non-descript bay (good thing for the roles he played because the movie goer never consciously identified him from one movie or scene to the next. He could fall several times in one movie alone and not be recognized as the same horse) who was fearless when he worked. Of course, the ground was always primed and soft. Fall horses were always treated gingerly, so they would not injure themselves, for two reasons: One, their work was valuable and an injury meant they couldn't work. Two, if they became afraid to fall, their career was over.
I remember the stunt man Tony Epper (the entire Epper family worked in stunts. They lived not far from me also) working Jerry Brown at the stables. They were working at slow speed and Jerry made his mark every time, one thing he was famous for. He didn't take extra steps. If X was where he was cued, it was at X where he dropped.