Robert Devlin McClellan and Sarah Lewis Rainey McClellan. 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 (January 19, 1837 - December 30, 1888), a noted mathematician, taught until his death; Mrs. McClellan (deceased February 2, 1914) remained at her post until 1895. Patterns they set still shape schools. #8170