From The Press of Atlantic City:VINELAND, N.J. - William Hemphill's daughter, Barbara Judith, has lived at the Vineland Developmental Center for 38 of her 50 years. She can't walk or communicate in any way. Hee father knows the best place for her is at the center, where she is surrounded by caring employees who know her better than anyone."The staff is the most wonderful people in the world," the