Philadelphia Archdiocese
- PDIO 30/08 Folder : Constitution and By-Laws of the Clerical Fund Society - Philadelphia nd
- PDIO 9 Series : Pittsburgh Byzantine Diocese 1978
- PDIO 9/07 Folder : Golden Jubilee Pittsburgh 1978
- PDIO 9 Series : Portland in Oregon Archdiocese 1978
- PDIO 9/06 Folder : Archives Portland in Oregon 1978
- PDIO 9 Series : Providence Diocese 1971-1972
- PDIO 9/09 Folder : Archivist Providence 1971/1118
- PDIO 9/10 Folder : Centennial Providence 1972/0623
- PDIO 8 Series : Reno Diocese 1935
- PDIO 8/02 Folder : Diamond Jubilee Reno 1935
- PDIO 10,13 Series : Richmond Diocese 1943-1958
- PDIO 10/08 Folder : Catholic Historical Society Richmond 1943,nd
- PDIO 13/05 Folder : Directories Richmond 1956.1958
- PDIO 8 Series : Rochester Diocese 1968
- PDIO 8/09 Folder : History Rochester 1968
- PDIO 8/09 Title : DIOCESE OF ROCHESTER McNamara, Robert F. 1968
- PDIO 3 Series : Rockford Diocese 1976
- PDIO 3/01 Folder : History Rockford 1976
- PDIO 3/01 Title : THAT ALL MAY BE ONE Miller, Robert B. 1976
- PDIO 5 Series : Salina Diocese 1962
- PDIO 5/10 Folder : Diamond Jubilee Salina 1962
- PDIO 10 Series : San Antonio Archdiocese 1949
- PDIO 10/06 Folder : Diamond Jubilee San Antonio 1949
- PDIO 8 Series : Santa Fe Archdiocese 1950
- PDIO 8/05 Folder : LAMY MEMORIAL Santa Fe 1950
- PDIO 8/05 Subject : Parish Histories Santa Fe 1950
- PDIO 2 Series : Savannah Diocese 1936
- PDIO 2/05 Folder : Histories Savannah 1936,nd
- PDIO 9 Series : Scranton Diocese nd
- PDIO 9/08 Folder : Appointments Scranton nd
- PDIO 14 Series : Springfield - Cape Girardeau Diocese 1974
- PDIO 14/01 Folder : Directory Springfield - Cape Girardeau 1974
- PDIO 3 Series : Springfield-in-Illinois Diocese 1928-1953
- PDIO 3/02 Folder : Histories Springfield-in-Illinois 1928-1953
- PDIO 3/03 Folder : History Springfield-in-Illinois 1928
- PDIO 2 Series : St Augustine Diocese 1923-1933
- PDIO 2/04 Folder : Histories St Augustine 1923-1933
- PDIO 3/03 Title : DIAMOND JUBILEE Thompson, Joseph J. 1928
- PDIO 7 Series : St Cloud Diocese 1952
- PDIO 7/11 Folder : Centennial St Cloud 1952
- PDIO 30 Series : St Paul / Minneapolis Archdiocese 1956
- PDIO 30/06 Folder : Aid Given to the Diocese of Saint Paul by the Society for the Propagation of the Faith, 1850-1873 1956
A Quarter Century of Alms / by Edward J. Flahavan
- PDIO 2,7,27-28 Series : St Louis Archdiocese 1850-1979
- PDIO 2/00 Folder : Centennial St Louis 1926
- PDIO 2/00 Document : Programs St Louis 1926
- PDIO 7/13 Folder : STATUTA LATA ET PROMULGATA St Louis 1850
- PDIO 7/14 Folder : SOUVENIR ALBUM St Louis 1907?
- PDIO 7/14 Subject : Parish Histories St Louis 1907?
- PDIO 7/14 Subject : Catholic Institutions St Louis 1907?
- PDIO 7/15 Folder : Catholic Refugee Families St Louis 1954
- PDIO 7/16 Folder : Necrology St Louis 1967
- PDIO 7/17 Folder : Archives St Louis nd
- PDIO 27-28 Folder : Yearbooks St Louis 1947-1979
- PDIO 11,29 Series : Superior Diocese 1948-1976
- PDIO 11/04 Folder : Centennial Superior 1948
- PDIO 29/01 Folder : Pastoral Handbook Superior 1963-1976
- PDIO 9 Series : Toledo Diocese 1983
- PDIO 9/02 Folder : History Toledo 1983
- PDIO 9/02 Title : HISTORY OF THE DIOCESE / Mossing, Lawrence A. 1983
- PDIO 8 Series : Trenton Diocese 1886
- PDIO 8/04 Folder : First Synod Trenton 1886
- PDIO 14 Series : Tucson Diocese 1976
- PDIO 14/02 Folder : Directory Tucson 1976
- PDIO 5 Series : Vincennes Diocese 1844-1893
- PDIO 5/04 Folder : SYNODUS PRIMA Vincennes 1844
- PDIO 5/05 Folder : History Vincennes 1884/0202
- PDIO 5/06 Folder : Constitutions Vincennes 1886
- PDIO 5/07 Folder : ORDO Vincennes 1893
- PDIO 1,14 Series : Youngstown Diocese 1951,1964
- PDIO 1/03 Title : The March of the Eucharist from Dungannon 1951
By the Most Reverend James A. McFadden - published by the Diocese of Youngstown: includes historical sketches of parishes in the diocese.
- PDIO 14/03 Folder : Directories - Youngstown 1964