I'd look at this one first - it's on billiongraves, but I don't have a subscription.
Nora F Keenan d 3 Aug 1959, buried Calvary, Queens
https://www.familysearch.org/ark:/61903/1:1:2HXP-YQYregarding the other one, people usually didn't get
everything wrong about their birth date. Maybe the year but not the date, or they'd be a day or two off from what the record says. Or with Irish records the actual birth could be a few weeks earlier than what the record said. People would be late registering the birth so they would give a date recent enough to avoid the fine.