BOSTON - The Massachusetts National Guard celebrated its 375th birthday at the Massachusetts House of Representatives chamber Dec. 13, 2011. In attendance were: Gov. Deval L. Patrick, Sec. Mary Elizabeth Heffernan, Executive Office of Public Safety and Security and Maj. Gen. Joseph C. Carter, The Adjutant General, Massachusetts National Guard. The ceremony was followed by a gathering outside the chamber, highlighted by a cake cutting and music by the 215th Army Band, Massachusetts National Guard.