| Date | Age | Event | Bishop | Title | Current Title | 
|---|
| 1 Sep |  | Born | Sebastian (Jobby) Pozholiparampil |  | Bishop of Hosur (Syro-Malabar), India | 
| 63.8 | Died | Ignace Ramarosandratana † | Bishop of Miarinarivo, Madagascar | 
| 2 Sep | 62.0 | Appointed | Antonio Ignacio Camargo † | Bishop of Trujillo, Venezuela | 
| 19.2 | Professed | Theodorus van Ruijven (van Ruyven), C.M. | Member of Congregation of the Mission | Vicar Apostolic Emeritus of Nekemte, Ethiopia | 
| 4 Sep |  | Born | Milan Chautur, C.Ss.R. |  | Bishop Emeritus of Košice (Slovak), Slovakia | 
|  | Born | Robert Joseph Lombardo, C.F.R. |  | Auxiliary Bishop of Chicago, Illinois, USA | 
| 5 Sep |  | Born | John Chrisostom Kwon Hyok-ju |  | Bishop of Andong, Korea (South) | 
| 41.3 | Appointed | Wilson Laus Schmidt † | Auxiliary Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop Emeritus of Chapecó, Santa Catarina, Brazil | 
| 41.3 | Appointed | Wilson Laus Schmidt † | Titular Bishop of Rhaedestus | Bishop Emeritus of Chapecó, Santa Catarina, Brazil | 
| 7 Sep | 29.3 | Ordained Priest | Allan Chamgwera | Priest | Bishop Emeritus of Zomba, Malawi | 
| 83.6 | Appointed | Jozef-Ernest van Roey † | Vicar Apostolic of Belgium, Military | Cardinal, Archbishop of Mechelen, Belgium | 
| 19.8 | Entered | Hugo María Van Steekelenburg, O.F.M. | Member of Order of Friars Minor | Bishop Emeritus of Almenara, Minas Gerais, Brazil | 
| 8 Sep | 24.4 | Perpetual Vows | Gilles Cazabon, O.M.I. | Member of Oblates of Mary Immaculate | Bishop Emeritus of Saint-Jérôme - Mont-Laurier, Québec, Canada | 
| 57.1 | Ordained Bishop | Jan Fondalinski † | Titular Bishop of Doberus | Auxiliary Bishop of Łódź, Poland | 
| 25.7 | Ordained Priest | Luis Gutiérrez Martín, C.M.F. † | Priest of Missionary Sons of the Immaculate Heart of Mary | Bishop Emeritus of Segovia, Spain | 
|  | Born | Oscar Nkolo Kanowa, C.I.C.M. |  | Bishop of Mweka, Congo (Dem. Rep.) | 
| 68.3 | Appointed | Francis Joseph Spellman † | Vicar Apostolic of Military, USA | Cardinal, Archbishop of New York, New York, USA | 
| 40.2 | Ordained Bishop | Manuel Talamás Camandari † | Bishop of Ciudad Juárez, Chihuahua, México | Bishop Emeritus | 
| 9 Sep | 51.6 | Appointed | Paul Bernier † | Archbishop (Personal Title) of Gaspé, Québec, Canada | Bishop | 
| 18.9 | Professed | Macram Max Gassis, M.C.C.I. † | Member of Comboni Missionaries of the Heart of Jesus | Bishop Emeritus of El Obeid, Sudan | 
| 11 Sep | 47.4 | Appointed | Evelio Domínguez Recinos † | Auxiliary Bishop of Tegucigalpa, Honduras | 
| 47.4 | Appointed | Evelio Domínguez Recinos † | Titular Bishop of Acholla | Auxiliary Bishop of Tegucigalpa, Honduras | 
| 12 Sep | 53.7 | Appointed | Jacinto Argaya Goicoechea † | Bishop of Mondoñedo, Spain | Bishop Emeritus of San Sebastián, Spain | 
| 45.3 | Appointed | João Floriano Loewenau, O.F.M. † | Prelate of Óbidos, Para, Brazil | Prelate Emeritus | 
| 60.6 | Ordained Bishop | Edward Joseph Maginn † | Titular Bishop of Curium | Auxiliary Bishop Emeritus of Albany, New York, USA | 
| 72.2 | Died | Giacomo Rosso † | Bishop Emeritus of Cuneo, Italy | 
| 50.0 | Ordained Bishop | Josef Stangl † | Bishop of Würzburg, Germany | Bishop Emeritus | 
| 13 Sep | 81.4 | Died | Henry Patrick Rohlman † | Archbishop Emeritus of Dubuque, Iowa, USA | 
| 14 Sep |  | Born | Daniele Gianotti |  | Bishop of Crema, Italy | 
|  | Died | Michael Augustin O’Connor, O.P. † | Prefect Emeritus of Jian’ou [Kienow, Kienning], China | 
| 46.1 | Ordained Bishop | Albert Sanschagrin, O.M.I. † | Titular Bishop of Bagis | Bishop Emeritus of Saint-Hyacinthe, Québec, Canada | 
| 73.4 | Appointed | Eugène-Gabriel-Gervais-Laurent Tisserant † | Librarian of the Vatican Library | Cardinal, Dean of the College of Cardinals | 
| 73.4 | Appointed | Eugène-Gabriel-Gervais-Laurent Tisserant † | Archivist of the Vatican Secret Archive | Cardinal, Dean of the College of Cardinals | 
| 15 Sep | 28.5 | Ordained Priest | Jorge Bernal Vargas, L.C. † | Priest of Congregation of the Legionaries of Christ | Prelate Emeritus of Cancún-Chetumal, Quintana Roo, México | 
| 22.4 | Ordained Priest | Lorenzo Chiarinelli † | Priest of Rieti (-S. Salvatore Maggiore), Italy | Bishop Emeritus of Viterbo, Italy | 
| 43.9 | Ordained Bishop | José Pedro de Araújo Costa † | Bishop of Caetité, Bahia, Brazil | Coadjutor Archbishop Emeritus of Uberaba, Minas Gerais, Brazil | 
|  | Born | Joseph Đỗ Mạnh Hùng |  | Bishop of Phan Thiết, Viet Nam | 
| 30.8 | Ordained Priest | Fikre-Mariam Ghemetchu, C.M. † | Priest of Congregation of the Mission | Vicar Apostolic Emeritus of Nekemte, Ethiopia | 
| 82.6 | Died | Jean Naslian † | Bishop Emeritus of Trabzon (Trebisonda) (Armenian), Turkey | 
| 16 Sep |  | Born | Marián Chovanec |  | Bishop of Banská Bystrica, Slovakia | 
|  | Born | Jean-Yves André Michel Nahmias |  | Bishop of Meaux, France | 
| 17 Sep | 67.6 | Died | Pietro Kedigian † | Titular Archbishop of Colonia in Armenia | 
| 20 Sep |  | Born | Stanisław Dowlaszewicz Billman, O.F.M. Conv. |  | Auxiliary Bishop of Santa Cruz de la Sierra, Bolivia | 
| 21 Sep | 30.6 | Ordained Priest | Carlos Marcio Camus Larenas † | Priest of Valparaíso, Chile | Bishop Emeritus of Linares, Chile | 
| 42.8 | Ordained Bishop | Luigi Maria Carli † | Bishop of Segni, Italy | Archbishop of Gaeta, Italy | 
| 24.6 | Ordained Subdeacon | Mario Cecchini † | Subdeacon of Senigallia, Italy | Bishop Emeritus of Fano-Fossombrone-Cagli-Pergola, Italy | 
| 31.4 | Ordained Priest | Sergio Otoniel Contreras Navia † | Priest of Valparaíso, Chile | Bishop Emeritus of Temuco, Chile | 
| 28.2 | Ordained Priest | Viktor Josef Dammertz, O.S.B. † | Priest of Order of Saint Benedict | Bishop Emeritus of Augsburg, Germany | 
| 29.0 | Ordained Priest | José Carmen Di Pietro Pésolo, S.D.B. † | Priest of Salesians of Saint John Bosco | Bishop of Sonsonate, El Salvador | 
| 26.7 | Ordained Priest | Abílio Rodas de Sousa Ribas, C.S.Sp. † | Priest of Congregation of the Holy Spirit | Bishop Emeritus of São Tomé e Príncipe | 
| 23.4 | Ordained Deacon | Francesco Sgalambro † | Deacon of Messina, Italy | Bishop Emeritus of Cefalù, Italy | 
| 80.4 | Died | Jean de Vienne de Hautefeuille, C.M. † | Bishop Emeritus of Tianjin [Tientsin], China | 
| 22 Sep | 38.5 | Ordained Bishop | José Maria Pires † | Bishop of Araçuaí (Arassuaí), Minas Gerais, Brazil | Archbishop Emeritus of Paraíba, Brazil | 
| 23.4 | Ordained Priest | Francesco Sgalambro † | Priest of Messina, Italy | Bishop Emeritus of Cefalù, Italy | 
| 30.0 | Ordained Priest | Abraham Than † | Priest | Bishop Emeritus of Kengtung, Myanmar | 
|  | Born | Tomás Jesús Zárraga Colmenares |  | Bishop Emeritus of San Carlos de Venezuela | 
| 23 Sep | 45.9 | Appointed | David de Sousa, O.F.M. † | Bishop of Funchal, Portugal | Archbishop Emeritus of Évora, Portugal | 
| 24 Sep | 44.3 | Ordained Bishop | Walter William Curtis † | Titular Bishop of Bisica | Bishop Emeritus of Bridgeport, Connecticut, USA | 
| 48.9 | Ordained Bishop | George Patrick Dwyer † | Bishop of Leeds, England, Great Britain | Archbishop Emeritus of Birmingham, England, Great Britain | 
| 60.4 | Ordained Bishop | Martin Walter Stanton † | Titular Bishop of Citium | Auxiliary Bishop Emeritus of Newark, New Jersey, USA | 
| 26 Sep |  | Born | Segundo René Coba Galarza |  | Bishop of Ibarra, Ecuador | 
|  | Born | Maurício Grotto de Camargo |  | Archbishop of Botucatu, Sao Paulo, Brazil | 
| 27 Sep |  | Born | Gabriel Peñate Rodríguez |  | Vicar Apostolic Emeritus of Izabal, Guatemala | 
| 25.3 | Solemn Vows | Michael Wiwchar, C.Ss.R. | Member of Congregation of the Most Holy Redeemer | Bishop Emeritus of Saskatoon (Ukrainian), Canada | 
| 28 Sep |  | Born | Ryszard Kasyna |  | Bishop of Pelplin, Poland | 
| 36.1 | Installed | Raúl Marcelo Pacífico Scozzina, O.F.M. † | Bishop of Formosa, Argentina | Bishop Emeritus | 
| 29 Sep | 23.0 | Ordained Priest | Michele Di Ruberto † | Priest of Lucera, Italy | Secretary Emeritus of the Congregation for the Causes of Saints | 
|  | Born | Gabriel Ghiakhomo Dunia |  | Bishop of Auchi, Nigeria | 
| 74.2 | Died | Georges Joseph Haezaert, C.S.Sp. † | Vicar Apostolic Emeritus of Northern Katanga {Katanga Settentrionale}, Congo (Dem. Rep.) | Vicar Apostolic Emeritus of Kongolo, Congo (Dem. Rep.) | 
| 42.5 | Ordained Bishop | Felice Leonardo † | Bishop of Telese o Cerreto Sannita, Italy | Bishop Emeritus of Cerreto Sannita-Telese-Sant’Agata de’ Goti, Italy | 
| 50.2 | Installed | Giuseppe Pullano † | Bishop of Patti, Italy | 
| 30 Sep |  | Born | Philippe André Yves Marsset |  | Auxiliary Bishop of Paris, France | 
| 2 Oct | 35.5 | Installed | Ignacio María de Orbegozo y Goicoechea † | Prelate of Yauyos, Peru | Bishop of Chiclayo, Peru | 
|  | Born | Doraboina Moses Prakasam |  | Bishop of Nellore, India | 
| 44.0 | Ordained Bishop | Helmut Hermann Wittler † | Bishop of Osnabrück, Germany | Bishop Emeritus | 
| 3 Oct | 17.1 | Entered | Franco Cuter, O.F.M. Cap. † | Member of Order of Friars Minor Capuchin | Bishop Emeritus of Grajaú, Maranhão, Brazil | 
| 42.6 | Appointed | Domingo Roa Pérez † | Bishop of Calabozo, Venezuela | Archbishop Emeritus of Maracaibo, Venezuela | 
| 40.8 | Ordained Bishop | John James Rudin, M.M. † | Bishop of Musoma, Tanzania | Bishop Emeritus | 
| 18.2 | Entered | Serafino Faustino Spreafico, O.F.M. Cap. | Member of Order of Friars Minor Capuchin | Bishop Emeritus of Grajaú, Maranhão, Brazil | 
| 4 Oct | 87.6 | Died | Juvencio Juan Hospital de la Puebla, O. Cart. † | Vicar Apostolic Emeritus of Northern Hunan {Hu-Nan Settentrionale}, China | 
|  | Born | Gabriel Malzaire |  | Archbishop of Castries, Saint Lucia, Antilles | 
| 44.9 | Appointed | Jean-Baptiste Musty † | Auxiliary Bishop of Namur {Namen}, Belgium | Auxiliary Bishop Emeritus | 
| 44.9 | Appointed | Jean-Baptiste Musty † | Titular Bishop of Botriana | Auxiliary Bishop Emeritus of Namur {Namen}, Belgium | 
| 5 Oct | 56.8 | Appointed | Filippo Aglialoro † | Auxiliary Bishop of Palermo, Italy | Auxiliary Bishop Emeritus | 
| 56.8 | Appointed | Filippo Aglialoro † | Titular Bishop of Germa in Galatia | Auxiliary Bishop Emeritus of Palermo, Italy | 
| 49.6 | Installed | José Agustín Marozzi † | Bishop of Resistencia, Argentina | Bishop Emeritus | 
| 6 Oct | 35.4 | Ordained Bishop | Raphaël I Bidawid † | Bishop of Amadiyah (Chaldean), Iraq | Patriarch of Babylon {Babilonia} (Chaldean), Iraq | 
| 36.7 | Ordained Bishop | André Sana † | Bishop of Aqrā {Akra} (Chaldean), Iraq | Archbishop Emeritus of Kerkūk (Chaldean), Iraq | 
| 82.7 | Retired | Paul-Louis Touzé † | Auxiliary Bishop of Paris, France | Auxiliary Bishop Emeritus | 
| 7 Oct |  | Born | Edward James Burns |  | Bishop of Dallas, Texas, USA | 
| 46.9 | Ordained Bishop | Paul Joseph Marie Gouyon † | Bishop of Bayonne (-Lescar e Oloron), France | Cardinal, Archbishop Emeritus of Rennes (-Dol-Saint-Malo), France | 
| 8 Oct | 81.8 | Died | Domenico Guido Menna † | Bishop Emeritus of Mantova, Italy | 
|  | Born | Novatus Rugambwa † |  | Apostolic Nuncio | 
| 9 Oct | 55.2 | Ordained Bishop | Alfred-Joseph Atton † | Titular Bishop of Theudalis | Bishop Emeritus of Langres, France | 
|  | Born | Raúl Martín |  | Archbishop of Paraná, Argentina | 
| 10 Oct | 44.1 | Appointed | Frederick William Freking † | Bishop of Salina, Kansas, USA | Bishop Emeritus of La Crosse, Wisconsin, USA | 
| 70.2 | Confirmed | Plácido (Thaddäus) Staeb (Stäb), O.S.B. † | Abbot of Order of Saint Benedict | 
| 12 Oct | 16.6 | Entered | Sylvester Carmel Magro, O.F.M. † | Member of Order of Friars Minor | Vicar Apostolic Emeritus of Benghazi, Libya | 
| 40.0 | Installed | Francisco de Borja Valenzuela Ríos † | Bishop of Antofagasta, Chile | Bishop Emeritus of Valparaíso, Chile | 
| 13 Oct |  | Born | John Baptist Attakruh |  | Bishop of Sekondi-Takoradi, Ghana | 
| 26.7 | Ordained Priest | Roman Danylak † | Priest of Winnipeg (Ukrainian), Manitoba, Canada | Apostolic Administrator Emeritus of Toronto (Ukrainian), Canada | 
| 14 Oct |  | Born | Julius Dusin Gitom |  | Bishop of Sandakan, Malaysia | 
| 15 Oct |  | Born | Ángel Julino Falzón, O.F.M. |  | Bishop of Comayagua, Honduras | 
| 16 Oct |  | Born | Pedro Mario Ossandón Buljevic |  | Bishop of Chile, Military | 
|  | Born | Joseph Jude Tyson |  | Bishop of Yakima, Washington, USA | 
| 18 Oct | 69.7 | Died | Johannes Bydolek † | Auxiliary Bishop of Hildesheim, Germany | 
|  | Born | Francisco Cerro Chaves |  | Archbishop of Toledo, Spain | 
| 53.4 | Ordained Bishop | Bernardino Nicola Mazzarella, O.F.M. † | Titular Bishop of Hadrianopolis in Pisidia | Bishop of Comayagua, Honduras | 
| 19 Oct | 21.7 | First Vows | George (Giorgio) Biguzzi, S.X. † | Member of Xaverian Missionary Fathers | Bishop Emeritus of Makeni, Sierra Leone | 
| 21 Oct | 76.0 | Died | Marcos Sergio Godoy † | Bishop of Maracaibo, Venezuela | 
| 23 Oct | 43.8 | Appointed | Juan José Iriarte † | Bishop of Reconquista, Argentina | Archbishop Emeritus of Resistencia, Argentina | 
| 38.5 | Appointed | José Alí Lebrún Moratinos † | Apostolic Administrator of Maracaibo, Venezuela | Cardinal, Archbishop Emeritus of Caracas, Santiago de Venezuela | 
|  | Born | Joaquim Wladimir Lopes Dias |  | Bishop of Lorena, Sao Paulo, Brazil | 
| 24 Oct | 77.9 | Appointed | Joseph-Eugène Limoges † | Archbishop (Personal Title) of Mont-Laurier, Québec, Canada | Bishop | 
| 25 Oct | 68.0 | Died | Jean Duperray † | Bishop of Montpellier (-Lodève-Béziers-Agde-Saint-Pons-de-Thomières), France | 
| 86.0 | Died | István Fiedler † | Bishop Emeritus of Oradea Mare {Gran Varadino, Nagyvárad} and Satu Mare {Szatmár}, Romania | 
| 26 Oct | 49.3 | Appointed | Léon-Arthur-Auguste Elchinger † | Titular Bishop of Antandrus | Bishop Emeritus of Strasbourg, France | 
| 49.3 | Confirmed | Léon-Arthur-Auguste Elchinger † | Coadjutor Bishop of Strasbourg, France | Bishop Emeritus | 
| 23.0 | Ordained Priest | Tadeusz Władysław Pieronek † | Priest of Kraków {Cracow}, Poland | Auxiliary Bishop Emeritus of Sosnowiec, Poland | 
| 27 Oct | 26.8 | Ordained Priest | Angel Nicolás Acha Duarte † | Priest of Villarrica, Paraguay | Bishop of Carapeguá, Paraguay | 
| 26.5 | Ordained Priest | Víctor Manuel López Forero † | Priest of Bogotá, Colombia | Archbishop Emeritus of Bucaramanga, Colombia | 
| 40.7 | Ordained Bishop | Humberto Lara Mejía, C.M. † | Titular Bishop of Traianopolis in Phrygia | Bishop of Santa Cruz del Quiché, Guatemala | 
| 24.5 | Ordained Priest | Juan Sandoval Íñiguez | Priest of Guadalajara, Jalisco, México | Cardinal, Archbishop Emeritus | 
| 85.9 | Died | Marciano Tinajero y Estrada † | Bishop of Querétaro, México | 
| 47.3 | Ordained Bishop | Herculanus Joannes Maria van der Burgt, O.F.M. Cap. † | Titular Bishop of Abila in Palaestina | Archbishop of Pontianak, Indonesia | 
| 28 Oct | 44.8 | Ordained Bishop | Alfred Matthew Stemper, M.S.C. † | Titular Bishop of Eleutheropolis in Palaestina | Bishop Emeritus of Kavieng, Papua New Guinea | 
|  | Born | Dieudonné Uringi Uuci |  | Bishop of Bunia, Congo (Dem. Rep.) | 
| 30 Oct | 80.9 | Died | Augustin Bostani † | Bishop of Saïdā (Sidone) (Maronite), Lebanon | 
|  | Born | Ruperto Cruz Santos |  | Bishop of Antipolo, Philippines | 
| 31 Oct | 95.4 | Died | Francesco d’Errico † | Bishop Emeritus of Alghero, Italy | 
| 41.4 | Appointed | Johannes Anton Vonderach † | Coadjutor Bishop of Chur, Switzerland | Bishop Emeritus | 
| 41.4 | Appointed | Johannes Anton Vonderach † | Titular Bishop of Aradi | Bishop Emeritus of Chur, Switzerland |