Roman Catholic Diocese of Thunder Bay

As per 2014 it pastorally served 81,400 Catholics (31.0% of 262,600 total) on 220,000 km² in 43 parishes with 46 priests (37 diocesan, 9 religious), 36 deacons and 16 lay religious (9 brothers, 7 sisters) .

• It was erected 29 April 1952, as the Diocese of Fort William, on territories split off from the Metropolitan Archdiocese of Saint-Boniface and the Diocese of Sault Sainte Marie.
• Renamed on 26 February 1970 as Diocese of Thunder Bay, after its see.

(all Roman Rite)

Suffragan Bishops of Fort William

• Edward Quentin Jennings (born Canada) (1952.05.14 – 1969.09.18), previously Titular Bishop of Sala (1941.03.22 – 1946.02.22) as Auxiliary Bishop of Archdiocese of Vancouver (BC, Canada) (1941.03.22 – 1946.02.22), Bishop of Kamloops (Canada) (1946.02.22 – 1952.05.14); emeritate as Titular Bishop of Assidona (1969.09.18 – resigned 1970.11.23), died 1980.

Suffragan Bishops of Thunder Bay

• Norman Joseph Gallagher (1970.04.16 – death 1975.12.28); previously Titular Bishop of Adrasus (1963.06.25 – 1970.04.16), first as Auxiliary Bishop of the Military Vicariate of Canada (Canada) (1963.06.25 – 1966), then as Auxiliary Bishop of Archdiocese of Montréal (Quebec, Canada) (1966 – 1970.04.16)
• John Aloysius O′Mara (1976.05.24 – 1994.02.02), next Bishop of Saint Catharines (Canada) (1994.02.02 – retired 2001.11.09)
• Frederick Bernard Henry (1995.03.24 – 1998.01.19); previously Titular Bishop of Carinola (1986.04.18 – 1995.03.24) as Auxiliary Bishop of London (Ontario, Canada) (1986.04.18 – 1995.03.24); later Bishop of Calgary (BC, Canada) (1998.01.19 – retired 2017.01.04)
• Frederick Joseph Colli (2 February 1999 - ... ), previously Titular Bishop of Afufenia (1994.12.19 – 1999.02.02) as Auxiliary Bishop of Ottawa (Ontario, Canada) (1994.12.19 – 1999.02.02).

• List of Catholic dioceses in Canada

• Diocese of Thunder Bay site
• GCatholic, with Google map & satellite photo
• "Diocese of Thunder Bay". Catholic-Hierarchy. Retrieved 2007-03-15.