I grew up close to the ruins of Thomas Iron Works in Pennsylvania. I had heard that Thomas had built a plant in Alabama but never could find any information about it....until now.
I believe Samual Thomas built the Alabama works. He was the son of David Thomas, who was the first to successfully use coal to make iron in the USA. This allowed iron to be made cheaper and in far greater quatities than could be made with charcoal. . This is thought to be the start of the industrial revolution. His first works, the Crane Iron Works located in Catasauqua, were a short distance down the river from the Thomas Works. The base of the last furnace is still standing there.
The ruins in PA, are mostly from 1920's rebuilding of the plant, though the still standing engine house is from about 1911. The depression ended iron production in both Hokendauqua and Catasauqua.
If interested I could post some of my pictures of those ruins, but here are some good ones somebody else posted:
http://news.webshots.com/album/559539867EykOaf
There are some great pictures of the Hokendaqua plant, before being torn down for scrap here:
http://digital.lib.lehigh.edu/cdm4/beyond_viewer.php?DMTHUMB=1&searchworks=cat10&ptr=010737
A 1904 history book about the Thomas Iron Company can be found here:
http://digital.lib.lehigh.edu/cdm4/beyond_viewer.php?DMTHUMB=1&searchworks=cat10&ptr=5685
Although I only set up a small model railroad at Christmas, I signed up to this forum to thank all the contributors for their work concerning this important historical site.
That power house in Alabama may be the oldest intact buildings constructed by the family that ushered in America's industrial revolution!