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But that wasn't the case for George Keller.
For his centennial celebration on Saturday, his big brother, Charles, who's 101, made the trip to Chicago from California, reported the Chicago Tribune.
So, what's the family secret?
Marcelle Bright, Chicago Tribune / MCT
George Keller, left, of Huntley, Ill., celebrates his 100th birthday Saturday with his older brother Charles, 101, of Escondido, Calif.
"I think a lot of (the longevity) has to do with genetics, inheritance," Charles told the Tribune.
"I think it's going to become a pretty regular thing for people. Here's two (centenarians) in the same family," George said.
