Complex sentence: His first book on railways was created on the basis of his fellowship by the Newcomen Fellowship at Harvard Business School in 1967th for his books on the railroad magnate Jay Gould and Edward Henry Harriman.
Split into simpler sentences: His first book on railways was written on the basis of the Newcomen Fellowship at Harvard Business School in 1967. He wrote on the railroad magnate Jay Gould and Edward Henry Harriman.