I asked my mom what she knew about him, and she said that his big claim to fame is a homesteading land management method of rotating pasture between different livestock for the purpose of pasture health and parasite management. So for example you'd have chickens on a certain section of land, then rest briefly, then have rabbits on the land, then pigs, then cows (this order is probably not correct, but just to give you an idea of the concept). The idea is to alternate between animals with different parasites and grazing habits to help manage parasites and help with pasture recovery. I'm sure he's branched out into many different areas since then, as this was a pretty long time ago, but that's how she knew about him.