The John Bull occupies a place today in the National Museum at Washington.
With the locomotive definitely accepted, men began to turn their minds towards its improvement and development, and locomotive building soon became a leading industry in America.

At first the British types and patterns were followed, but it was not long before American designers began to depart from the British models and to evolve a distinctively American type.

In the development of this type great names have been written into the industrial history of America, among which the name of Matthias Baldwin of Philadelphia probably ranks first.

But there have been hundreds of great workers in this field.

From Stephenson's Rocket and the little Tom Thumb of Peter Cooper, to the powerful "Mallets" of today, is a long distance--not spanned in ninety years save by the genius and restless toil of countless brains and hands.
If the locomotive could not remain as it was left by Stephenson and Cooper, neither could the stationary steam engine remain as it was left by James Watt and Oliver Evans.