I would look for books at a public library, particularly one in a larger city or county. History books tend to go out of print. I wouldn't restrict yourself to the children's shelves, because there can be interesting & appropriate books in the adults section. Particularly ones that have a lot of pictures.

If you can get a chance to visit the area, I am sure there must be a museum or two around. This brought a smile to my face because it's part of my history, my great-grandfather manufactured loom parts in that part of the world into the 1950's.