I tried looking up a Gilson last summer and was quite surprised at how little information was available on them. They built a lot of tractors under their brand and for others. Many Montgomery Wards and Fords were Gilsons. Good luck with it. Paul
They are tough built units. At least in my area the early Gilson's seem to be much more rare than the Montgomery Ward counterparts. They don't seem to have a big following but I like them. The S14 appears to be in very good condition.