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Styles of Sylvester William Treinen
Reference style	The Most Reverend
Spoken style	Your Excellency
Religious style	Monsignor

Sylvester William Treinen (November 19, 1917 – September 30, 1996) was an American prelate of the Roman Catholic Church. He served as bishop of the Diocese of Boise in Idaho from 1962 to 1988.

Biography

Early life

Sylvester Treinen was born in Donnelly, Minnesota, to William John and Kathryn (née Krausen) Treinen. He attended Crosier Seminary in Onamia from 1935 to 1941, and earned a Bachelor of Arts degree from St. Paul Seminary in Saint Paul in 1943.

Priesthood

Treinen was ordained to the priesthood on June 11, 1946.

As a priest of the Diocese of Bismarck in North Dakota, Treinen was a curate in Dickinson from 1946 to 1950, and secretary to Bishop Vincent James Ryan and his successor, Bishop Lambert Anthony Hoch, from 1950 to 1953. He then served as a curate at the Cathedral of the Holy Spirit (1950–1957), chancellor of the diocese (1953–1959), and curate at St. Anne's Parish in Bismarck (1957–1959). From 1959 to 1962, he was pastor of St. Joseph's Parish in Mandan.

Bishop of Boise

On May 23, 1962, Treinen was appointed the fifth Bishop of Boise in Idaho by Pope John XXIII. He received his episcopal consecration on the following July 25 from Bishop Hilary Baumann Hacker, with Bishops Peter William Bartholome and Lambert Hoch serving as co-consecrators. He attended all four sessions of the Second Vatican Council between 1962 and 1965, and worked to implement the reforms of the Council in the diocese.

Retirement and legacy

After 26 years as Bishop of Boise, Treinen retired on August 17, 1988. He was succeeded by Tod David Brown. He served as the parish priest for St. Ann's Parish in Arco, Idaho after his retirement. Sylvester Treinen died in Missoula, Montana, at age 78.

References

1. ^ Curtis, Georgina Pell (1961). The American Catholic Who's Who. Vol. XIV. Grosse Pointe, Michigan: Walter Romig.
2. ^ "Bishop Sylvester William Treinen". Catholic-Hierarchy.org.
3. "Priests who have served at St. Joseph". Church of Saint Joseph. Archived from the original on 2010-05-25.

External links

• Roman Catholic Diocese of Boise

v t e Roman Catholic Diocese of Boise
Bishops	Ordinaries Louis Aloysius Lootens Alphonse Joseph Glorieux Daniel Mary Gorman Edward Joseph Kelly James Joseph Byrne Sylvester William Treinen Tod David Brown Michael Patrick Driscoll Peter F. Christensen
Churches	Cathedral Cathedral of St. John the Evangelist Parishes St. Mary's Church, Boise St. Charles Borromeo Church, Hailey Holy Rosary Church, Idaho Falls Our Lady, Queen of Heaven Church, Oreana St. Joseph's Church, Pocatello Former Coeur d'Alene Mission of the Sacred Heart St. Joseph's Mission, Culdesac
Education	High school Bishop Kelly High School, Boise
Priests	William Weigand
Miscellany	Mercy Medical Center (Idaho) Old Mission State Park
Catholicism portal

v t e Roman Catholic Diocese of Bismarck
Bishops	John Baptist Vincent de Paul Wehrle Vincent James Ryan Lambert Anthony Hoch Hilary Baumann Hacker John Francis Kinney Paul Albert Zipfel David Kagan
Churches	Cathedral Cathedral of the Holy Spirit Parishes St. Mary's Church, Hague St. Mary's Church, Medora Saints Peter and Paul Church, New Hradec Saints Peter and Paul Church, Strasburg Chapel Our Lady of the Annunciation Chapel
Education	Higher education University of Mary High schools Bishop Ryan High School, Minot St. Mary's Central High School, Bismarck Trinity High School, Dickinson
Priests	Sylvester William Treinen Austin Anthony Vetter
Catholicism portal

• 20th-century Roman Catholic bishops in the United States
• Participants in the Second Vatican Council
• Saint Paul Seminary alumni
• 1917 births
• Roman Catholic bishops of Boise
• 1996 deaths
• People from Mandan, North Dakota
• Roman Catholic Diocese of Bismarck
• Religious leaders from North Dakota
• Catholics from North Dakota