David D. Campbell, Schenectady Locomotive Works
David D. Campbell was one of the principal shareholders in the Schenectady Locomotive Works along with John Ellis. Was he also a locomotive engineer and where or when was he born? Also, where and when was William Buchanan born? He was the locomotive engineer who designed the Empire State Express, the first land transport vehicle to exceed 100 mph.
—Andy Paterson, Sydney, Australia