By Molly Daly

PHILADELPHIA (CBS) — Sunday was National Siblings Day, celebrating brotherly love and sisterly affection. Families gathered at the Pennsylvania Convention Center reminiscing on family ties.

Avery Patrick’s is one of four and says siblings and family represent a special bond.

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“They mean everything. There’s a link there. There’s a historic link, there’s a cultural link. There’s a connection that brings me closer to Mom and Dad because they came first,” he says. “So, there’s that bridge there, that takes me to my relatives that came before me.”

Cec Vanasperen has three surviving siblings. She says no matter how old they are, when they get together, they assume the same roles they had as kids.

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“And we have the same discussions. In fact, at one point they asked us to leave Starbucks because we were having too much fun,” she laughed.

But Shana Hockaday doesn’t have siblings, nor does her son. She says it’s gonna stay that way.

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“I’ve got one and it feels like I got ten!”