In recognition of their mission to serve struggling young students in Boston’s South End neighborhood, AARP has named Fred and Martha Smith of Dedham the Massachusetts recipients of the association’s most prestigious volunteer award, the 2013 AARP Andrus for Community Service.  The Smiths received this honor during an award ceremony at Generations Incorporated, the Boston affiliate of AARP Experience Corps, where they have served as volunteer reading mentors for the past four years.