|Trainer||Ben A. Jones|
|Mar-Kell is a thoroughbred racehorse out of Nellie Flag by Blenheim. She was born around 1939 in the United States, and was bred by Calumet Farm.|
Spinaway Stakes (1941)|
Beldame Handicap (1943)
Top Flight Handicap (1943)
|American Champion Older Female Horse (1943)|
|Horse (Equus ferus caballus)|
Mar-Kell (1939-1966) was an American Champion Thoroughbred filly racehorse. Her dam was the 1934 American Champion Two-Year-Old Filly, Nellie Flag, and her sire was the 1930 Epsom Derby winner Blenheim who had been imported to the United States in 1937 by a syndicate which included Mar-Kell's breeder, Calumet Farm.
Bred in Kentucky, Calumet Farm raced Mar-Kell for four years from age two through five. Trained by future U.S. Racing Hall of Fame inductee, Ben Jones, as a four-year-old, Mar-Kell's 1943 performances earned her American Champion Older Female Horse honors.
Retired to broodmare duty, of her offspring her best known is the Calumet runner, Mark-Ye-Well. Foaled in 1949, the colt's multiple wins in important stakes races include the Arlington Classic, American Derby, Lawrence Realization Stakes, and the Santa Anita Handicap.
Mar-Kell died in 1966 at age twenty-seven and was buried in the equine cemetery at Calumet Farm.