Betty Bollenbacher, who turned 80 on Sunday, plucks a 12-pound ball from a rack at Plaza Bowling Lanes in Celina. Even hip replacement surgery has failed to sideline the avid bowler.

The variegated blue ball rolls noisily along the polished lane toward 10 pins standing at attention. Impact sends them sprawling in all directions as Betty Bollenbacher racks up another strike. Bollenbacher, who turned 80 on Su . . .