I don't think any of the Karnes County Sheriffs fit the bill. E.C. (Eli Calloway) Seale served as Karnes County Sheriff from 1902 to 1910. Eli died June 22, 1923 in Runge, Karnes Co., and is buried in the Karnes City Cemetery.
W.T. (Brack) Morris was Sheriff from 1896 to 1901, when he was killed in office by Gregorio Cortez (1982 movie "The Ballad of Gregorio Cortez"; Edward James Olmos). Morris was succeeded in office by Deputy W.C. Hunter. Seale won the election in 1902. Jim Brown followed Seale as Sheriff, and served from 1910 to 1934.
Maybe a different county?