Complex sentence: From 1954 to 1983, the school's principal was a committed American, Evelyn M.Strader, from North Carolina, She had taken over charge of the school from Ms Wells.
Split into simpler sentences: From 1954 to 1983, the school's principal was a committed American, Evelyn M. Strader, from North Carolina. Evelyn Strader had taken over charge of the school from Ms Wells.