sentences:  Blackmon served as city attorney for Anniston from 1898 until 1902, and served as member of the State senate from 1900 until 1910.He served as chairman of the congressional committee for the fourth Alabama district from 1906 until 1910, when he resigned.Blackmon was elected as a Democrat to the Sixty-second and to the four succeeding Congresses and served from March 4, 1911.