THURSDAY SOCIAL SERVICES: The Gloucester Social Services Board will meet at 7:30 this morning, Thursday, July 16, in the Department of Social Service conference room, 6641 Short Lane, Gloucester. CONCERTS ON THE GREEN: Toby and Larry will perform from 5:30-6:30 this evening, Thursday, July 16, in the Concerts on the Green series at 6504 Main Street on the courthouse circle. It is free and open to the public.SUPERVISORS: The Mathews Board of Supervisors will meet at 6 o’clock this evening, Thursday, July 16, in the historic courthouse on Court Street. BOOK TALK: Bruce Bracken, author of the mystery novel, “Death on Gwynn’s Island,” will speak at 7 o’clock this evening, Thursday, July 16, at the Mathews Museum, 200 Main Street. There will be a book signing afterward. FRIDAY FAIRFIELD FRIDAY: The public is invited to visit the Fairfield Archaeology Park between 10 a.m. and 4 p.m. on Friday, July 17, for Fairfield Friday. There will be excavations and guided or self-guided tours of the str...