P.T. Barnum's prize elephant Jumbo was killed September 15, 1885, crossing railroad tracks in St. Thomas, Ontario. The collision derailed the train, and 150 people were required to haul the elephant's body up an embankment.
Jumbo's death was a great loss to Barnum's show, but the loss was somewhat mitigated when both the taxidermied hide of the beast and its skeleton were exhibited together.
Vital statistics: height 11.5 feet, weight 6.5 tons, age 24