Trains and horses were preferred in the U.S. to Showman's road locomotives then

 Showman's road locomotives were built in varying sizes, from relatively small 5, 6 and 7 NHP engines, right up to large 8 or 10 NHP engines. Probably the most popular design was the Burrell 8NHP single-crank compound design. The far greater distances involved meant they never caught on in the United States, where a combination of trains and horses was preferred.^[1]

^{end partial quote from:} showman's engine 

 ^{This actually makes sense because the U.S. is so big so an actual locomotive Train and a horse would make more sense because of the 2,778 miles between New York City and Los Angeles, California which is about 42 hours if you drive even now by car between these two cities.}

^{So, maybe you put your horse or horses on a train and ride the train to a location and then you ride your horse under 100 miles somewhere. This makes perfect sense because there were no paved roads at all except in big cities then on earth. or if they weren't paved they were cobblestone roads like you see a lot in England and Europe Still in the ancient parts of cities there.}