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Democrat; roster of members of the 31st Legislature with biographical and party information. "Year Book 1909," Number 13, May-June 1910, pp. 408-415.
Bulletin (Texas Department of Agriculture) 1910.
Samuel Kunningham O'Bryant, birth date 1/17/1874, death date 11/6/1962 in Uvalde, Uvalde County, stockman/stock farmer.
FamilySearch Texas Deaths, 1890-1976 .
31st Legislature (1909) - Sam O'Bryant, postoffice Bandera, nativity Texas, age 35 (born circa 1874), farmer, 35 years in Texas, Democrat.
Texas Legislative Manual .