In 1846 the Apostolic Vicariate of Oregon became the Ecclesiastical Province of Oregon and was divided into three Sees and five associated districts; OREGON CITY, Nesqually; WALLA WALLA, For Hall, Colville; VANCOUVER ISLAND, Queen Charlotte Islands, and New Caledonia.

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Ecclesiastical Province of Oregon - established December 1, 1843
Archbishop Francois Norbert Blanchet 1843-1846

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Diocese of Vancouver Island, Queen Charlotte Islands and New Caledonia
Bishop Modeste Demers 1847-1871

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Vicariate Apostolic of British Columbia - established December 14, 1863
(formerly Queen Charlotte Island and New Caledonia)
Bishop Louis-Joseph D'Herbomez, O.M.I. 1864-1890

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Diocese of New Westminster - established September 2, 1890: Bishops
Paul Durieu, O.M.I. 1890-1899

Augustine Dontenwell, O.M.I. 1899-1908

Archdiocese of VancouverArchbishops
Augustine Dontenwill, O.M.I. 1908
Neil McNeil 1910-1912
Timothy Casey 1912-1931
William Duke 1931-1964

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Diocese of Kamloops - established December 22, 1945

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Bishops:

• Edward Q. Jennings                                                1946-1952

• Michael A Harrington                                            1952-1973

• Adam Exner, O.M.I.                                                 1974-1982

  • (Archbishop of Vancouver)                           1992-2004​​​

• Lawrence Sabatini, C.S.                                          1982-1999​

• David Monroe                                                           2002-2016

• Joseph P. Nguyen                                
  Episcopal Ordination and Installation    August 25, 2006