When I was in high school, 49-53, I worked summers at Thomson-Heyland. The company made flooring and was in the old Knight Bros. factory. I have no pix; only sharp memories of the dreadful noise, dangerous saws, belts and whirring drive wheels. I have some old family pix of the factory from outside, showing the flume, and the Arnour in winter garb.
Let me know if this is any use.