The sad thing about Appaloosas is that they were almost destroyed as a breed in the late 19th century. Therefore, every Appaloosa today IS a mix of mustang, Appaloosa, some of what would have been called QH before the AQHA registry even existed, TB, Arab and who knows what. I had a friend who had a TWH/Appy. He didnât gait, but he was full color and characteristic, white sclera, mottled skin, etc.
When Hatley and Thompson started the Appaloosa registry in 1938, they chose the best types of Appaloosa they could find, and crossed them on TB and Arabian, trying to restore the type that had been degraded by forced draft crosses by the US Government. That is why those Arab/TB crosses are accepted for full registry with ApHC. Of course, there is QH in Appaloosas even before the wholesale QH crosses of the last 20-30 years, but originally it wasnât to the point that it is now, when you have horses that look entirely QH with minimal color and often NO other characteristics - and often no color either!!
Of course the QH thing works both ways: AQHA registered several âroanâ Quarter Horses that later produced Appaloosa foals, even when bred to other âregistered Quarter Horses.â
The late founder of the Foundation Appaloosa Registry was a bit of a character and a man of strong opinions, but I have to agree with him that âyou can put color on anything, but that doesnât make it an Appaloosa.â That registry is working towards producing horses with at least an eight generation âAppaloosa onlyâ pedigree. Ergo, while they accept that there are QH, TBs and Arabian cross Appaloosas given âFoundationâ designation by ApHC (e.g., Red Eagleâs Peacock), my present horse would not be eligible for Foundation registry despite his dam being in the 90th percentile of Foundation breeding, since his sire is an Arabian. (He is full characteristic and color, FWIW, and his full brother is leopard. LOL)