Mary Lou Graves
- Born: 7 Feb 1871, , Bell County, Texas
- Marriage (1): Leonidas Eugene Patterson
- Died: 2 Feb 1925, Texas at age 53
- Buried: Goldthwaite Memorial Cemetery, Goldthwaite, Mills County, Texas
Mary married Leonidas Eugene Patterson, son of Americus Vespucious Patterson and Emily Catherine Cowden. (Leonidas Eugene Patterson was born on 1 Aug 1869 in Alabama, United States, died on 9 May 1934 in Brownwood, Brown County, Texas and was buried in Goldthwaite Memorial Cemetery, Goldthwaite, Mills County, Texas.)
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