Shannon and Tommy Gibson have quite the Notre Dame spirit. She’s 18 and headed to South Bend, Ind., in the fall as a biological sciences major, and he’s 16 and a bigger fan of the Fighting Irish than she is. So it was no surprise to see them dressed in Notre Dame garb when the sister-brother tandem showed up at The Sand Trap in Ship Bottom on July 10 for the fifth week of “Can You Beat Biggy?” They even brought fans – 16 of them!