Some T-5 and TD-5 Crawlers were buildt in HamiltonInternational boasted that this was the largest agricultural implement works in the British Empire! It was opened in about 1903. There was also the Oliver Chilled Plow Co. works in Hamilton and IHC took this over in 1918.
I am not sure what is left of Harvester, as everyone called it in Hamilton. Case built equipment in there after the take-over and I think there was another company making some sort of farm equipment.
They had their own railway and locomotives. I have pictures somewhere of a loco but wouldn't know where to find it. They made some crawler tractors in there at one time, lots of threshing machines, ploughs and other equipment.
Sawyer-Massey was just around the corner, and Studebaker. National Steel Car is still there, building railway cars.