the treatment of diseases, injuries, and other physical ailments with baths and bathing, especially in natural mineral waters. Origin of balneotherapy.
The name Percy originated in France. It means piercing the valley which also can mean fighting the lower side, the evil side, to reach justice. Jackson means son of Jack. I know, I don't get it either.
Percy was most likely built by the Avonside Engine Company sometime around the 1900's and has gone through a subsequent rebuild in the before he was sold second-hand to the North Western Railway by a factory on the Mainland.