Also there can be surprising situations with pensions, e.g. people legitimately receiving Civil War military pensions into the 2000s: https://en.wikipedia.org/w

Also there can be surprising situations with pensions, e.g. people legitimately receiving Civil War military pensions into the 2000s: https://en.wikipedia.org/wiki/American_Civil_War_widows_who_survived_into_the_21st_century https://en.wikipedia.org/wiki/American_Civil_War_widows_who_.... I don't know Social Security's data model, but I wouldn't be surprised if it was still legitimately paying out pensions derived from the accounts of people who'd be 150+ if they were still living.