https://lebeauleblog.com/2017/04/04/april-4-happy-birthday-robert-downey-jr-and-heath-ledger/

Bea Benadaret (1906-1968) starred as Kate Bradley on the first five seasons of Petticoat Junction; she also was a voice actor who did Granny in the Looney Tunes cartoons for a few years and Betty Rubble for the first four seasons of The Flintstones.

I've noticed on Wikipedia and a few other sites that Bea Benaderet's birth year has been changed from 1906 to 1902. I wonder who discovered this and if it is legit.