McKinney was foaled in 1887 by Alcyone out of Rosa Sprague, and was bred by W. H. Wilson. At the age of two he was sold to Charles Durfee of California for $1,500 but did not race until he was three. McKinney was unbeaten the next season, trotted in 2:12 1/2 and was retired to stud for a year. In 1892 he went back to trot in 2:11 1/4 at Stockton, California. In 1893 he was permanently retired and became famous as a sire. In 1904 McKinney was sold to William Simpson for $50,000 and remained at the Empire City Stud, Cuba, New York, where he died on April 18, 1917. McKinney's skeleton was donated to the American Museum of Natural History as a representative of the breed.
Empire City Stud, Cuba, NY
Published in the Harness Racing Museum's 1994 book, The Immortals