Smith served as a member of the Gloucester School Committee, the Gloucester City Council and was a trustee of the Addison Gilbert Hospital. Smith served as Mayor of Gloucester from 1954 to 1955; however, at the time Smith was mayor, Gloucester was adhered to a Plan E form of government. The office of mayor was a ceremonial position, the mayor was a city councilor chosen by the city council. The city administration was carried out by a professional city manager. For many years Smith was the chief executive of his family's business, the Merchants Box Company in Gloucester.
Senate appointment (Right) with
Ben Smith III and Senator Benjamin A. Smith II (Left) visiting in the
White House. After being elected
President of the United States, John F. Kennedy resigned his seat in the
United States Senate on December 22, 1960. Kennedy, who had been reelected to a second Senate term of six years in 1958, advised then-Governor
Foster Furcolo to appoint Smith to fill the vacated seat "in the interest of promoting party unity." Smith, a close friend of the Kennedy family, was described as being a "seat warmer" until Kennedy's brother
Ted turned thirty, the minimum age to be eligible to serve in the Senate. Indeed, Smith served as Senator until November 6, 1962, when Kennedy won
the special election. ==Death and burial==