Dedham Library Department 257 Mount Vernon St Dedham, MA 02026 Phone : (781) 326-5339 Business Category Libraries Dedham Town Of--library Dept, Branches Endicott Mt Vernon Dedham, MA 02026 Phone : (781) 326-5339 Business Category Government Offices-City Village & Twp Libraries Government Offices State & Local Government Offices & Public Schools Dedham Town Of--library Dept, Branches, Endicott Mount Vernon Dedham, MA 02026 Phone : (781) 326-5339 Business Category Government Offices-City Village & Twp Libraries Government Offices State & Local Government Offices & Public Schools