Barbie Life in the Dreamhouse Sisters" Fun Day w Fifth HarmonyTo celebrate National Sisters Day (Sunday, August 7), British Airways teamed up with Ancestry to bring two sisters together with their half-sister from the U.K. for the first time. Mandy Shore, 71, was adopted, and because only her mothers name was on her birth certificate, she never knew much about her fathers side of the family. She turned to the Ancestry...