The child-abuse advocate says 'I do' to beau Matthew Gilmour in a picture-perfect Feb. 18 ceremony
Credit: Brian Doben
Updated: Saturday Feb 25, 2012 | 06:00 AM EST
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A staple by her side during the preparations and festivities, Smart's younger sister Mary Katherine, 19, told guests, "Elizabeth is my best friend and has always been there for me."
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