Due to the declining Catholic population in the diocese, the last bishop, Raymond Roussin, was entrusted with dissolving the diocese in 1995. On September 14, 1998 the diocese reverted to the Archdiocese of Regina and the Diocese of Saskatoon.[1]
Louis-Joseph-Arthur Melanson (1932.11.25 – 1936.12.16), later Metropolitan Archbishop of Moncton (Canada) (1936.12.16 – 1941.10.23)
Joseph-Wilfrid Guy, O.M.I. (1937.06.02 – 1942.11.07), previously Titular Bishop of Photice (1929.12.19 – 1937.06.02) & Apostolic Vicar of Grouard (Canada) (1929.12.19 – 1937.06.02); emeritate again as Titular Bishop of Photice (1942.11.07 – death 1951.12.08)
Marie-Joseph Lemieux (マリー・ジョゼフ・ルミュー) (1944.04.07 – 1953.06.29), previously Bishop of Sendai 仙台 (Japan) (1935.12.03 – 1941.01.16), then Titular Bishop of Calydon (1941.01.16 – 1944.04.07); later Metropolitan Archbishop of Ottawa (Canada) (1953.06.29 – resigned 1966.09.24), then Titular Bishop of Saldæ (1966.09.24 – death 1994.03.04) & Apostolic Nuncio (papal ambassador) to Haiti (1966.09.24 – 1969), Apostolic Pro-Nuncio to India (1969 – 1971)
Aimé Décosse (1953.11.03 – retired 1973.05.12)
Noël Delaquis, Trappists (O.C.S.O.) (1973.12.03 – 1995.04.10); emeritate as first Titular Bishop of Gravelbourg (see below 1998.11.14 – present ...)
Raymond O. Roussin, Marianists (S.M.) (1995.04.10 – 1998.09.14), later Coadjutor Bishop of Victoria (in Canada)) (1998.09.14 – 1999.03.18), succeeded as Bishop of Victoria (1999.03.18 – 2004.01.10), Metropolitan Archbishop of Vancouver (Canada) (2004.01.10 – 2009.01.02)