Old Fred : Sire & dam were QH there was a Standardbred mare as a Grand Dam on the Dam's side.
I believe any breeding from the 1890's has long been bred out of the breed.
I also believe the first 3 generations is all that counts, any thing beyond that is most likely been bred out............
I worked at a barn back in 09 and they had 2 pintoloosas there. I wish I could find some pictures of them. The gelding had paint markings with a blanket on his rump and the little mare had spots of spots . . . The little mare was kinda cool looking but boy could she be a diva, and not in the good way