On the amish thing..
My family are from a conservative Mennonite background, I'm the first generation that was raised with no living relatives still using horse and buggy and living off the grid.
All the food preservation horror stories I have heard came after they stopped canning and producing their own food. Bad ice cream killed my mother's triplet sister in 1922, and my own sister has had several cases of tomaine in her family from stuff she froze or left sitting out too long. Honestly, I have to wonder if my niece thawed things and put them back in the freezer being a ditzy teen, it happened so often there for a while.
Of course we don't know what people died of years and years ago, especially in Amish and Mennonite communites, medicine, record keeping and testing was not what it is today.