His stud book entry gives his information as a bay stallion foaled in 1932, bred by Bernard Adams of Alfred, Texas and his owner at registration as Guy M. Troutman of Tucumcari, New Mexico.
[1] His sire was Paul El by Hickory Bill by Peter McCue and his dam was Bivarita by Billy Sunday.
[1][2] During his breeding career, Billy Clegg sired two AQHA Race Register of Merit earners – Billy Big Enuf and Dust Storm.
[3] He sired on AQHA Champion, Billie B Fisher, and several Superior Performance horses, including Chickasha Mike.
[4] Twenty-nine of his daughters produced point earning show horses or racers.