Peter McCue (foaled 1895) was registered in the American Stud Book as a Thoroughbred, sired by Duke of the Highlands, but his breeder and his breeder's family always maintained that he was actually sired by a Quarter Horse stallion named Dan Tucker.

[1][2][3] His dam was a Thoroughbred mare named Nora M, who was a double-bred descendant of the imported stallion Glencoe.

[2] One story has it that, the horse was named after a neighbor of the Watkins' family, Peter McCue.

[4]' Peter McCue raced for a number of years, then was retired to stud, standing in Illinois, Texas, Oklahoma, and Colorado before his death in 1923.

[5] Among his offspring were Hickory Bill, A D Reed, Shiek P-11, Chief P-5, Harmon Baker, John Wilkens and Jack McCue.