Kammala jumla mai zuwa: An kira Daley Coadjutor Bishop na Harrisburg a ranar 31 ga Yuli, 1967, kuma daga bisani ya yi nasara da Bishop Leech a matsayin Bishop na shida na Harrisburg a ranar 19 ga Oktoba, 1971. A lokacin mulkinsa na tsawon shekaru 12, ya kafa Ofishin Diocesan na Shirye-shiryen, Ofishin Ci gaban Diocesan, da Shirin Emmaus ga firistoci. Ya yi kira da a dakatar da gina tashoshin wutar lantarki na wucin gadi bayan da
hadarin a tashar samar da makamashin nukiliya ta Three Mile Island kusa da Harrisburg a shekarar 1979.