Haverly's United Mastodon Minstrels walkers, and minstrels in elephant costumes. Haverly's United Mastodon Minstrels saw great success, and the impact on minstrelsy was profound. Other troupe owners rushed to compete, mimicking the Mastodons' elaborate sets and large number of players. Ultimately, many smaller companies folded or were forced to travel further from the established minstrel circuits in order to survive. Haverly's United Mastodon Minstrels Haverly's United Mastodon Minstrels was a blackface minstrel troupe created in 1877, when J. H. Haverly merged four of the companies he owned and managed. Borrowing techniques from showmen like P. T. Barnum, Haverly advertised the Mastodons in broadsides, newspapers,
Mastodon (steam locomotive) Mastodon (steam locomotive) Mastodon was the unofficial name of the Central Pacific Railroad's number 229, the world's first successful 4-8-0 steam locomotive. The engine was designed and built by the road's master mechanic, Andrew Jackson "A.J" Stevens at Sacramento Locomotive Works in 1882. The locomotive had two highly unusual features: the firebox shape and the steam distribution. The only other locomotives to use such a valve gear were the 20 copies of "Mastodon" (see below) and CPR #237 "El Gobernador." All other steam locomotives with slide valves had just a single valve in the center. After being readied for its