Mattie Silks was born in 1848.
Mattie Lietz died in 1956.
Mattie Belle Davis died in 2004.
Mattie Griffith Browne died on 1906-05-25.
Mattie Witting died on January 30, 1945, in San Diego, California, USA.
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Mattie Connolly died on March 18, 1947, in Los Angeles County, California, USA.
Mattie Shaw died on February 15, 2002, in Edina, Minnesota, USA of lengthy illness.
Mattie Keene died on September 1, 1944, in New York City, New York, USA.
Mattie Ferguson died on March 31, 1929, in New York City, New York, USA.
The colours a jockey wears are known as 'silks'.
silks, or racing silks.