| Date | Age | Event | Bishop | Title | Current Title |
| Sep | 41.9 | Appointed | Constant-Mathurin Hillion † | Bishop of Cap-Haïtien, Haïti | Archbishop of Port-au-Prince, Haïti |
| 1 Sep | | Born | Joseph Bach, M.S.C. † | Urmatt, France | Vicar Apostolic Emeritus of Gilbert Islands {Isole Gilbert}, Kiribati, Pacific (Oceania) |
| 4 Sep | | Born | Pietro Fumasoni Biondi † | Roma | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| Born | Paul-Louis-Joseph Lequien † | Merville, France | Bishop of Martinique (Fort-de-France e Saint Pierre), Martinique, Antilles |
| 6 Sep | 70.8 | Appointed | Lorenzo Barili † | Cardinal, Prefect of the Congregation for Indulgences and Relics |
| Born | Federico Emmanuel (Emanuel), S.D.B. † | Gassino Torinese | Bishop Emeritus of Castellammare di Stabia, Italy |
| 7 Sep | | Born | Luis Adriano Díaz Melo † | Fontibón | Bishop Emeritus of Cali, Colombia |
| 11 Sep | 53.4 | Died | Giuseppe Buscarini † | Bishop of Borgo San Donnino, Italy |
| 19 Sep | 72.1 | Died | Patrício Xavier de Moura † | Bishop of Funchal, Portugal |
| 20 Sep | | Born | Emilio Cecco, C.S.I. † | Pinerolo, Italy | Vicar Apostolic Emeritus of Napo, Ecuador |
| 21 Sep | 23.1 | Ordained Priest | Charles-Joseph-Louis-Abel Gilbert † | Priest | Bishop Emeritus of Le Mans, France |
| 22 Sep | 23.9 | Ordained Priest | François-Xavier Cloutier † | Priest | Bishop of Trois Rivières, Québec, Canada |
| 22.5 | Ordained Priest | Michele Zezza di Zapponeta † | Priest of Napoli {Naples}, Italy | Archbishop Emeritus |
| 24 Sep | 23.6 | Ordained Priest | Aristide Cavallari † | Priest of Venezia {Venice}, Italy | Cardinal, Patriarch |
| 27 Sep | 40.4 | Appointed | Herbert Vaughan † | Bishop of Salford, England, Great Britain | Cardinal, Archbishop of Westminster, England, Great Britain |
| 58.7 | Appointed | William Weathers † | Auxiliary Bishop of Westminster, England, Great Britain |
| 58.7 | Appointed | William Weathers † | Titular Bishop of Amyclae | Auxiliary Bishop of Westminster, England, Great Britain |
| 29 Sep | | Born | Miguel de Lima Valverde † | Santo Amaro | Archbishop of Olinda e Recife, Pernambuco, Brazil |
| 30 Sep | | Born | Paul-Marie Le Bihain, S.M.M. † | Saint-Lyphard, France | Bishop of Port-de-Paix, Haïti |
| 1 Oct | 38.4 | Appointed | Charles Arsène Bourdon, M.E.P. † | Vicar Apostolic of Northern Burma {Birmania Settentrionale}, Myanmar | Vicar Apostolic Emeritus |
| 38.4 | Appointed | Charles Arsène Bourdon, M.E.P. † | Titular Bishop of Dardanus | Vicar Apostolic Emeritus of Northern Burma {Birmania Settentrionale}, Myanmar |
| 43.7 | Appointed | John Leonard † | Vicar Apostolic of Cape of Good Hope, Western District {Capo di Buona Speranza, Distretto Occidentale}, South Africa |
| 43.7 | Appointed | John Leonard † | Titular Bishop of Charadrus | Vicar Apostolic of Cape of Good Hope, Western District {Capo di Buona Speranza, Distretto Occidentale}, South Africa |
| 3 Oct | 58.2 | Died | Alexander Goss † | Bishop of Liverpool, England, Great Britain |
| Born | Franz Tschann † | Bludenz | Vicar Apostolic Emeritus of Innsbruck-Feldkirch, Austria |
| 5 Oct | | Born | Nicolao Milone † | Viù | Bishop of Alessandria (della Paglia), Italy |
| Born | Agustín Parrado y García † | Fuensaldaña | Cardinal, Archbishop of Granada, Spain |
| 6 Oct | 62.3 | Ordained Bishop | François-André-Xavier de Gaffory † | Bishop of Ajaccio, France |
| 7 Oct | 50.1 | Appointed | Matthäus Joseph Binder † | Bishop of Sankt Pölten, Austria |
| 8 Oct | | Born | Giuseppe di Girolamo † | Vallecorsa | Bishop Emeritus of Lucera, Italy |
| Born | Ernst Karl Jakob Seydl † | Mnischek | Auxiliary Bishop of Wien {Vienna}, Austria |
| 9 Oct | | Born | John Tchang † | Siaoyngli | Prefect of Chowchich [Zhouzhi], China |
| 10 Oct | 25.6 | Ordained Priest | François Gerboin, M. Afr. † | Priest of Missionaries of Africa (White Fathers) | Vicar Apostolic of Unianyembé, Tanzania |
| 65.0 | Died | Andrés Rosales Muñoz † | Bishop of Almería, Spain |
| 11 Oct | 52.5 | Died | Aloyse Kobès, C.S.Sp. † | Vicar Apostolic of Senegambia, Senegal |
| 12 Oct | 48.3 | Ordained Bishop | Victor-Jean-François-Paulin Delannoy † | Bishop of Saint-Denis-de-La Réunion | Bishop of Aire et Dax, France |
| 13 Oct | 58.1 | Installed | James Roosevelt Bayley † | Archbishop of Baltimore, Maryland, USA |
| 53.6 | Ordained Bishop | Joseph-Jean-Louis Robert † | Bishop of Constantine (-Hippone), Algeria | Bishop of Marseille, France |
| 14 Oct | | Born | Patrick Aloysius Alphonsus McGovern † | Omaha | Bishop of Cheyenne, Wyoming, USA |
| 15 Oct | | Born | José de Jesús López y Gonzalez † | Aguascalientes | Bishop of Aguascalientes, Aguascalientes, México |
| 16 Oct | | Born | José Horacio Campillo Infante † | Santiago | Archbishop of Santiago de Chile |
| Born | Augustin-Marie Tardieu, M.E.P. † | Montrodat, France | Vicar Apostolic of Quinhon, Viêt Nam |
| 18 Oct | 62.1 | Died | Michael O’Connor, S.J. † | Bishop Emeritus of Pittsburgh, Pennsylvania, USA |
| 20 Oct | 38.2 | Installed | James Gibbons † | Bishop of Richmond, Virginia, USA | Cardinal, Archbishop of Baltimore, Maryland, USA |
| Born | Calogero Licata † | Aragona | Bishop of Calvi e Teano, Italy |
| 21 Oct | | Born | Louis-Joseph Gaillard † | Beauvais | Archbishop of Tours, France |
| Born | Michele Godlewski † | Varsavia | Auxiliary Bishop Emeritus of Lutsk, Ukraine |
| 22 Oct | | Born | Alessio Ascalesi, C.Pp.S. † | Casalnuovo | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 26 Oct | | Born | Andrew Killian † | Rhode Offaly, Ireland | Archbishop of Adelaide, Australia |
| 27 Oct | 35.1 | Succeeded | Aires de Ornelas de Vasconcelos † | Bishop of Funchal, Portugal | Archbishop of Goa, India |
| 28 Oct | 40.5 | Ordained Bishop | Herbert Vaughan † | Bishop of Salford, England, Great Britain | Cardinal, Archbishop of Westminster, England, Great Britain |
| 58.8 | Ordained Bishop | William Weathers † | Titular Bishop of Amyclae | Auxiliary Bishop of Westminster, England, Great Britain |
| 30 Oct | | Born | Ludovico Cattaneo † | Saronno | Bishop of Ascoli Piceno, Italy |
| Born | Francis-Xavier Gsell, M.S.C. † | Strasbourg, France | Bishop of Darwin, Australia |
| Born | Martin Meulenberg, S.M.M. † | Hillensberg | Vicar Apostolic of Iceland {Islanda} |
| 1 Nov | 61.2 | Died | Giacomo Antonio Colli † | Bishop of Alessandria (della Paglia), Italy |
| 22.7 | Ordained Priest | Michael Kelly † | Priest | Archbishop of Sydney, Australia |
| 2 Nov | 39.3 | Appointed | Mariano Jaime Casanova y Casanova † | Apostolic Administrator of Valparaíso, Chile | Archbishop of Santiago de Chile |
| Born | Alberto Maria Ordóñez Crespo † | Cuenca | Bishop of Bolivar, Ecuador |
| 3 Nov | | Born | Francis Wang Tse-pu (Uamcepu) † | Chungking | Bishop Emeritus of Wanhsien [Wanxian], China |
| 7 Nov | | Born | Luigj Bumci † | Scutari | Bishop Emeritus of Lezhë {Lesh}, Albania |
| 10 Nov | 33.2 | Installed | Gerlando Maria Genuardi † | Bishop of Acireale, Italy |
| 13 Nov | | Born | Abdallah Khouri † | Bkasin | Titular Archbishop of Arca in Armenia per i Maroniti |
| 14 Nov | 48.9 | Died | Joseph-Clair Reyne † | Bishop of Guadeloupe et Basse-Terre, Guadeloupe, Antilles |
| 15 Nov | 18.2 | Professed | Nicolás Casas y Conde, O.S.A. † | Member of Order of St. Augustine | Vicar Apostolic of Casanare, Colombia |
| 16 Nov | | Born | Joseph Patrick Lynch † | Saint Joseph, MI | Bishop of Dallas-Fort Worth, Texas, USA |
| 19 Nov | 59.0 | Appointed | Manuel Teodoro del Valle † | Titular Archbishop of Berytus | Archbishop Emeritus of Lima, Peru |
| 59.0 | Resigned | Manuel Teodoro del Valle † | Archbishop of Lima, Peru | Archbishop Emeritus |
| 21 Nov | | Born | Fortunado Devoto † | Buenos Aires | Auxiliary Bishop of Buenos Aires, Argentina |
| 23 Nov | | Born | Antônio José dos Santos, C.M. † | Cachoeira do Campo | Bishop of Assis, Sao Paulo, Brazil |
| 26 Nov | | Born | Joseph-Sylvain-Marius Fabrègues, C.M. † | Montpellier, France | Coadjutor Vicar Apostolic of Peking [Beijing], China |
| 11 Dec | 63.1 | Died | Ferdinand-Aimé-Augustin-Joseph Dupond, M.E.P. † | Vicar Apostolic of Eastern Siam {Siam Orientale}, Thailand |
| Born | Rambert-Irénée Faure † | Sorbiers | Bishop of Saint-Claude, France |
| 12 Dec | | Born | Georges-Marie de Labonninière de Beaumont, C.S.Sp. † | Idron, France | Bishop of Saint-Denis-de-La Réunion |
| 15 Dec | 43.9 | Ordained Bishop | John Leonard † | Titular Bishop of Charadrus | Vicar Apostolic of Cape of Good Hope, Western District {Capo di Buona Speranza, Distretto Occidentale}, South Africa |
| 16 Dec | 62.8 | Appointed | François-Alexandre Roullet de la Bouillerie † | Coadjutor Archbishop of Bordeaux, France |
| 49.0 | Appointed | François-Albert Leuillieux † | Bishop of Carcassonne, France | Archbishop of Chambéry, France |
| 44.4 | Appointed | Joseph-Frédéric Saivet † | Bishop of Mende, France | Bishop of Perpignan-Elne, France |
| 52.4 | Appointed | Alexandre-Léopold Sebaux † | Bishop of Angoulême, France |
| 19 Dec | | Born | Ignazio Giuseppe Tommaso Staub, O.S.B. † | Menzingen | Abbot of Maria Einsiedeln, Switzerland |
| 21 Dec | 25.0 | Ordained Priest | Pascual Carrascosa y Gabaldón † | Priest | Bishop of Orense, Spain |
| 25.4 | Ordained Priest | Thomas James Conaty † | Priest | Bishop of Monterey-Los Angeles, California, USA |
| 23.4 | Ordained Priest | Leo Michael Haid, O.S.B. † | Priest of Order of Saint Benedict | Vicar Apostolic of North Carolina, USA |
| 25.9 | Ordained Priest | Ricardo Isaza y Goyechea † | Priest of Montevideo, Uruguay | Auxiliary Bishop of Montevideo, Uruguay |
| 26.7 | Ordained Priest | Mariano Soler † | Priest of Montevideo, Uruguay | Archbishop of Montevideo, Uruguay |
| 23 Dec | 50.3 | Confirmed | Matthäus Joseph Binder † | Bishop of Sankt Pölten, Austria |
| 67.6 | Appointed | Giuseppe Caiazzo † | Archbishop of Otranto, Italy |
| 38.3 | Appointed | Gaetano Camillo Guindani (Guindari) † | Bishop of Borgo San Donnino, Italy | Bishop of Bergamo, Italy |
| 58.5 | Confirmed | Léopold-René Leséleuc de Kerouara † | Bishop of Autun (-Châlon-sur-Saône-Mâcon), France |
| 48.3 | Appointed | Domenico Mignanti † | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 41.7 | Appointed | Giuseppe Morteo di Livorno, O.F.M. Cap. † | Bishop of Massa Marittima, Italy |
| 45.3 | Appointed | Mihail Pavel † | Bishop of Gherla, Armenopoli, Szamos-Ujvár (Romanian), Romania | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 58.8 | Appointed | Stefano Pribek de Ville † | Auxiliary Bishop of Veszprém, Hungary |
| 58.8 | Appointed | Stefano Pribek de Ville † | Titular Bishop of Loryma | Auxiliary Bishop of Veszprém, Hungary |
| 57.7 | Appointed | Pietro Giocondo Salvai di Govone † | Bishop of Alessandria (della Paglia), Italy |
| 58.7 | Appointed | Antonio Sena † | Bishop of Ascoli Satriano e Cerignola, Italy |
| 28 Dec | | Born | Ersilio Menzani † | Mongardino | Bishop of Piacenza, Italy |
| Born | Henry Thomas Renouf † | St. John's, Newfoundland | Bishop of Saint George’s, Newfoundland, Canada |
| 29 Dec | 45.1 | Ordained Bishop | José Maríe del Refugio Guerra y Alva † | Bishop of Zacatecas, Zacatecas, México | Bishop of Tlaxcala, Tlaxcala, México |
| 31 Dec | 23.6 | Ordained Priest | Jerónimo Thomé da Silva † | Priest of Olinda, Brazil | Archbishop of São Salvador da Bahia, Brazil |