- PDIO : Diocesan and Archdiocesan: Printed Material
- PDIO 7 Series : Alexandria Diocese 1953
- PDIO 7/01 Folder : Centennial Alexandria 1953
- PDIO 2 Series : Alton Diocese (Springfield-in-Illinois Diocese) 1918
- PDIO 2/06 Folder : CLERICAL BEAD ROLL Alton 1918
- PDIO 10 Series : Amarillo Diocese 1955,1984
- PDIO 10/02 Folder : Histories Amarillo 1955,1984
- PDIO 10/02 Subject : Golden Jubilee Amarillo 1955
- PDIO 7,15 Series : Baltimore Archdiocese 1934-1975
- PDIO 7/04 Folder : Archives Baltimore
- PDIO 15/01 Folder : Directories Baltimore 1934-1975
- PDIO 5 Series : Bardstown Diocese 1830,1976
- PDIO 5/11 Folder : Regulations Bardstown 1830
- PDIO 5/12 Folder : BISHOPS AND PRIESTS Bardstown 1976
- PDIO 12 Series : Baton Rouge Diocese 1963
- PDIO 12/01 Folder : Directory Baton Rouge 1963
- PDIO 2 Series : Belleville Diocese 1914-1939
- PDIO 2/07 Folder : History Belleville 1914
- PDIO 2/08 Folder : DIOCESAN REVIEW Belleville 1928
- PDIO 2/09 Folder : Golden Jubilee Belleville 1938-1939
- PDIO 8 Series : Bismark Diocese 1916,1960
- PDIO 8/10 Folder : History Bismark 1960
- PDIO 8/11 Folder : STATUTES AND REGULATIONS Bismark 1916
- PDIO 7 Series : Boston Archdiocese 1980,1945
- PDIO 7/05 Folder : History Boston 1908
- PDIO 7/06 Folder : GUIDE TO RELIGIOUS LIFE Boston 1945
- PDIO 12 Series : Bridgeport Diocese 1977
- PDIO 12/03 Folder : Directory Bridgeport 1977
- PDIO 8 Series : Brooklyn Diocese 1899
- PDIO 8/06 Folder : Forty Hours Devotion Brooklyn 1899
- PDIO 8 Series : Buffalo Diocese 1893,1939
- PDIO 8/07 Folder : History Buffalo 1893
- PDIO 8/07 Folder : Bishops Buffalo 1939
- PDIO 10 Series : Burlington Diocese 1953
- PDIO 10/07 Folder : Centennial Burlington 1953
- PDIO 2,12 Series : Chicago Archdiocese 1950-1974
- PDIO 2/10 Folder : SCHOOL REPORT Chicago 1950-1951
- PDIO 2/11 Folder : CATHOLICS IN 1960 Chicago 1960
- PDIO 2/12 Folder : Archives Chicago 1974/0328
- PDIO 12/04 Folder : Directory Chicago 1973
- PDIO 8,16-17 Series : Cincinnati Archdiocese 1907-1971
- PDIO 8/13 Folder : Parish Schools Report Cincinnati 1907-1908
- PDIO 8/14 Folder : 125th Anniversary Cincinnati 1971
- PDIO 16/01 Folder : Directories Cincinnati 1959-1967
- PDIO 17/01 Folder : CLERUS CINCINNATENSIS Cincinnati 1942-1960
- PDIO 8 Series : Cleveland Diocese 1942
- PDIO 8/15 Folder : PARISHES Cleveland 1942
- PDIO 9 Series : Columbus Diocese 1923,1943
- PDIO 9/01 Folder : Histories Columbus 1923,1943
- PDIO 9/01 Title : HISTORY OF FIFTY YEARS 2 vols. 1943
- PDIO 5-6 Series : Covington Diocese 1880-1958
- PDIO 5/13 Folder : Synodus Covington 1880-1934
- PDIO 5/14 Folder : Marydale Retreat House Covington 1958
- PDIO 5/15 Folder : Miscellany Covington 1891,1956
- PDIO 5/15 Subject : Fund-raising Covington 1956
- PDIO 5/15 Subject : World's Fair Covington 1891
- PDIO 6/01 Folder : Priests Covington 1899-1977
- PDIO 6/01 Subject : Necrology Covington 1943
- PDIO 7 Series : Crookston Diocese 1964
- PDIO 7/09 Folder : History Crookston 1964
- PDIO 1 Series : Dallas Diocese 2002
- PDIO 1/01 Title : Circuit Rider to Cathedral: How the Diocese of Dallas Came to Be 2002
- PDIO 1/02 Title : De Visitante Ambulante a Catedral: Como Nacio la Diocesis de Dallas 2002
- PDIO 2 Series : Denver Diocese 1889
- PDIO 2/03 Folder : History Denver 1889
- PDIO 7 Series : Detroit Diocese 1886
- PDIO 7/07 Folder : History Detroit 1886
- PDIO 5 Series : Dubuque Archdiocese 1937
- PDIO 5/08 Folder : Centennial Dubuque 1937
- PDIO 7 Series : Duluth Diocese 1977
- PDIO 7/10 Folder : Archives Duluth 1977
- PDIO 10 Series : El Paso Diocese 1965,1983
- PDIO 10/03 Folder : Histories El Paso 1965,1983
- PDIO 10/03 Subject : Golden Jubilee El Paso 1965
- PDIO 10/03 Subject : Metzger, Sidney M., Bishop El Paso 1965
- PDIO 4,21-22,30 Series : Evansville Diocese 1944-1989
- PDIO 4/01 Folder : Clippings Evansville 1944-1957
- PDIO 4/02 Folder : THIRD SYNOD Evansville 1969
- PDIO 21-22 File : Yearbooks - Evansville 1949-1989
- PDIO 21/ File : Yearbooks - Evansville 1947-1979
- PDIO 22/ File : Yearbooks - Evansville 1981-1989
- PDIO 30/01 Folder : Catholic Charities: Diocese of Evansville Third Annual Report 1947
- PDIO 8 Series : Fargo Diocese 1939
- PDIO 8/12 Folder : Golden Jubilee Fargo 1939
- PDIO 4,18 Series : Fort Wayne - South Bend Diocese 1871-1982
- PDIO 4/03 Folder : Collections and Donations Fort Wayne - South Bend 1871-1887
- PDIO 4/04 Folder : School Reports Fort Wayne - South Bend 1886-1912
- PDIO 4/05 Folder : Clippings Fort Wayne - South Bend 1880-1982
- PDIO 4/06 Folder : Facultates Fort Wayne - South Bend 1931,1932?
- PDIO 4/07 Folder : Statuta Fort Wayne - South Bend 1874
- PDIO 4/08 Folder : Liturgy Newsletter Fort Wayne - South Bend 1979/11
- PDIO 18/01 Folder : Directories Fort Wayne - South Bend 1973-1982
- PDIO 10 Series : Galveston Diocese 1922-1947
- PDIO 10/04 Folder : Diamond Jubilee Galveston 1922
- PDIO 10/04 Subject : St Mary Cathedral Galveston 1922
- PDIO 10/05 Folder : Centennial Galveston 1947
- PDIO 4,12 Series : Gary Diocese 1958,1973
- PDIO 4/09 Folder : A DIOCESE IS BORN Gary 1958/0705
- PDIO 12/05 Folder : Directory Gary 1973