Her father, former President George W. Bush, escorted his daughter down the aisle while her grandfather, former President George H.W. Bush, watched the ceremony at the family's Walker Point compound in Kennebunkport, Maine, on Sunday.
Her twin sister, Jenna Bush Hager, told NBC's "Today" show on Monday Barbara wore something borrowed a bracelet her grandfather had given to his wife on their 70th wedding anniversary. Her namesake and grandmother, former first lady Barbara Bush, died at age 92 in April.
The couple will live in New York.
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