Supporters of a Maryland referendum that would reverse the state’s gay marriage law have submitted more than twice the number of signatures needed — and have done so a month ahead of schedule. The Maryland Marriage Alliance needed to collect 55,736 valid signatures by June 30 and was required to submit a third of them — about 18,000 — by May 31. Instead, it submitted 113,000 signatures Tuesday (May 29), all of which it said were valid.