Hi again and thanks for the welcome! My name is Jo and I'm from New Zealand.
Most of the accounts in the Legends books just mention that a horse was 'owned by film star Audie Murphy' from this date to that date, but the thing that stood out to me was that while the horses were under his ownership there were wise breeding decisions made that crossed outstanding bloodlines and race records. Although I'd read a little about him in my studies of World War 2, my first real awareness of Audie Murphy was as an insightful horseman with very good taste in mounts! It was only after seeing his name in books and old magazine articles about Quarter Horse history that we watched his movies and found that he was a talented actor, and then read about his military career and we thought, Wow, Audie Murphy was quite a guy.
After watching a few of his movies I was curious about whether he owned, trained or both any of the horses that he rode other than Flying John? We've noticed that he rarely used spurs but his horses responded to the slightest touch and he often can be seen saying his lines and maneuvering his horses as though riding was natural to him.
He might have trained some other horses he owned in the early fifties, but he didn't ride them in the movies. In the late fifties he was so busy with his movies, overseeing his breeding and racing operations overall, assisting in police work, etc. that I don't think he had time for much one-on-one training. Usually, he rode animals from the Universal stables in his films. I think the only "movie horses" he owned were Flying John (seen in Drums Across the River, Ride Clear of Diablo, Guns of Fort Petticoat, Ride a Crooked Trail, and Night Passage) and Joe Queen (seen in maybe half the episodes of Whispering Smith). There is a dialogue reference in "The Texican" to his mount being a good quarter horse, which is probably an insider's reference to his real life love of QHs. But the animal he's actually riding in the film is pretty clearly an Andalusian or similar Spanish breed (that being where Texican was filmed).
A lot of people describe him as having a natural rapport with animals, particularly horses and dogs, so I think his skill as a rider came from that (well, that and good teachers and lots of practice). It's good to know that he and his trainer Dallas Clark made sound judgment calls with their breeding program-some Audie Murphy biographers, not being horse people, tend to portray him as just this guy aimlessly spending money on expensive animals because they don't really get what he was trying to do.