MANSFIELD - Jeptha W. Detweiler, 28, 1642 Route 549, is charged by state police with endangering welfare of children, reckless endangerment and obstruction of the law after drivers found his child, age 3, on the centerline of Route 549 on June 15. A subsequent search of Detweiler's house allegedly revealed a glass pipe and suspected marijuana. Children and Youth Services were dispatched to the scene. The drugs and paraphernalia then allegedly went missing and Detweiler denied ever having them. Detweiler appeared at a June 19 preliminary hearing before Judge James E. Carlson.