Charlestown resident Dan Ryan (far right) took his oath of office as state representative at a swearing-in ceremony Wednesday at the State House in Boston. Ryan was elected to a two-year term in November after winning a special election for the seat in March. Ryan, who represents Charlestown and Chelsea, is pictured at the State House with State Representatives (from left) Diana DiZoglio (Methuen), Joseph McGonagle (Everett), and Roselee Vincent (Revere).