Robert Devlin McClellan (January 19, 1837 - December 30, 1888) Sarah Lewis Rainey McClellan (deceased February 2, 1914) First professional educators in Giddings, opening a private school in 1874. In 1883, start of Giddings public free schools saw the McClellans heading the first faculty. McClellan, a noted mathematician, taught until his death; Mrs. McClellan remained at her post until 1895. Pattern they set still shapes schools. Recorded - 1970