For the chained Marley , Dickens had remembered a visit he had made to the Western Penitentiary in Pittsburgh , Pennsylvania , in March 1842 , where he saw -- .
For the chained Marley , Dickens was affected by seeing -- fettered prisoners .
For the chained Marley , Dickens had remembered a visit he had made to the Western Penitentiary in Pittsburgh , Pennsylvania , in March 1842 , where he saw -- and was affected by seeing -- fettered prisoners .