Preakness Stud was the Thoroughbred horse racing and breeding operation established by Medway, Massachusetts businessman Milton H. Sanford in the Preakness section of Wayne, New Jersey at what today is the corner of Valley Road and Preakness Avenue. 
Kentucky stud farm
Milton Sanford expanded his breeding operation to the Bluegrass region of Kentucky with the acquisition of the 544-acre (2.20 km2) North Elkborn Stock Farm in Lexington which he renamed the Preakness Stud. One of his stallions at stud in Kentucky was Virgil, who sired Kentucky Derby winners Hindoo, Ben Ali and Vagrant, plus Preakness Stakes winner, Vanguard, and the champion 2-year-old colt, Tremont. In 1881, the sixty-eight-year-old Milton Sanford sold the Kentucky Preakness stud and its fifty-nine horses to Daniel Swigert who renamed it Elmendorf Farm.
Preakness Stud was purchased by James Galway in 1881. A prominent businessman and a member of the Board of Stewards of The Jockey Club, he raced under the nom de course Preakness Stables. In 1890, he won the Preakness Stakes with Montague trained by Edward Feakes. Galway worked to improve the Stud's breeding operation that would produce the 1895 Preakness and Belmont Stakes winner, Belmar.
- "Thoroughbred Heritage Portraits - Hindoo". Thoroughbred Heritage. 2018-12-27. Retrieved 2018-12-27.
- "The Kentucky Derby, Preakness and Belmont Stakes: A Comprehensive History, p.28". McFarland & Company, Inc. 2014-02-25. Retrieved 2018-12-27.
- "Preakness - "What's In A Name?"" (PDF). Archive.org. 2006-11-18. Retrieved 2018-12-27.
- "Daniel Swigert Dies At Lexington". Daily Racing Form at University of Kentucky Archives. 1912-05-28. Retrieved 2018-12-09.
- "The American Turf - James Galway (p. 152)". The Historical Company, New York. 1898-01-01. Retrieved 2018-12-14.
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