Bob and Ellie Anderson, residents of Stonebridge at Burlington, recently renewed their wedding vows and celebrated 57 years of wedded bliss. The couple was among several at the senior living community who participated in a vow renewal and wedding reception at Stonebridge. The Andersons met through mutual friends on a blind date to the Boston Pops. They later married in Medford. When asked about the secret to marital success, Bob jokes that he traveled a lot!