Have to remember this is a place where horses are allowed to run wild. Her mother is a gray, very light looks white almost. the only possibilities to be her father could have been a very light blue roan colt, or a very light dun roan colt, the dun paint (Jefito), or her half brother, a light gray with a few fading appy spots on his butt. These were all young boys out here at the time. I know the dun paint, and the light dun roan, were both pretty determined at a young age and fathered a few foals, the other two were not so, and don't know of either one of them siring any foals, though I could be wrong.
I second that motion...if I were rich and famous...well if I win the lottery..LOL...I would love to know if UC at Davis could do a DNA test on her and find out if its a new color or a mode of an existing color.