The Knights of Columbus is holding a pork roast supper on Sat. July 2 from 5 to 6 p.m. at Our Lady of Perpetual Help Church on Route 302 in Windham. The dinner will consist of pork roast, baked potatoes, carrots, apple sauce, rolls, homemade desserts, coffee and punch. The dinner costs $7 for adults, $3 for children 12 or under.