Yes, Sarah, times have changed.
My grandfather, who I always call Mad Grandfather Joe, HE WAS MY GRANDAD AND I DON'T CARE, WORLD! was incarserated when he was only 39. He was Mad.....I have just learned why. In 1901 Grandfather was Mad. But earlier His Grandfather died young as a result of a brain rotting disease brought on we now know by working with certain kinds of wood.
The whole family worked on the wood one way or another.
Nowadays I expect Grandfather Joe would have been cared for at home, and not locked up and forgotten. At least it sounds as thought you Grandmother's brother was remembered by his family.
All I have of Grandfather Joe is a faded photograph.