This horse is actually Ace of Hearts 2 and was bred by Anastacio Tacho Saenz. Ace of Hearts 2 was foaled in 1918(?) and died in 1942(?). He was by Ace of Hearts and of out of a Saenz mare by Hickory Bill. He was bred by Anastacio Tacho Saenz of Rios Texas, who sold him to Bill Warren of Hockley,Texas, first president of AQHA.
Foundation Sires of the American Quarter Horse By Robert M. Denhardt