Complex sentence: Callaway succeeded D. W. Caldwell as president of the Nickel Plate Road in 1895; he was succeeded by W. H. Canniff in 1897.
Split into simpler sentences: Callaway succeeded D. W. Caldwell as president of the Nickel Plate Road in 1895. Callaway was succeeded as president of the Nickel Plate Road by W. H. Canniff in 1897.