Mayor Curtatone and the Somerville Board of Alderman have reviewed and approved six members of the Somerville Fire Department for promotion to higher ranks. The appointments were made official at last week’s General Meeting of the Board. The promotions went to: Michael Avery, to Deputy Fire Chief; Sean Tierney, to Deputy Fire Chief; Gregory French, to Fire Captain; Steven Mauras, to Fire Captain; Timothy Flynn, to Fire Lieutenant; and Paul French, to Fire Lieutenant.