So how do they know the age of someone who has incomplete records like that? Take their word for it? That sounds like trouble. What would invalidate the benefi

So how do they know the age of someone who has incomplete records like that? Take their word for it? That sounds like trouble. What would invalidate the benefits is death. This 150 year old business is a corner case obviously, so finding those dead people is not so easy. I'd assume there are more checks issued to dead people who were never reported than dead people who were properly recorded as dead. I don't know the frequency of fraud in either case but one is easier to get away with than the other.