Pope Leo XIV appoints Iowa priest to lead mission diocese of Baker, Oregon

Father Thomas Hennen, vicar general of the Diocese of Davenport, Iowa, has been appointed by Pope Leo XIV to be the next bishop of Baker, a mission diocese in eastern Oregon. / Courtesy of Diocese of Davenport

Rome Newsroom, Jul 10, 2025 / 12:30 pm (CNA).

Pope Leo XIV has tapped Father Thomas Hennen, vicar general of the Diocese of Davenport, Iowa, to be the next bishop of Baker, a mission diocese in eastern Oregon.

The bishop-elect, who celebrates 21 years as a priest on July 10, is a former vocations director. He has also been rector of Sacred Heart Cathedral in Davenport since 2021. 

A moral theologian, Hennen has over 10 years of experience in pastoral outreach to people with same-sex attraction, as diocesan coordinator and chaplain for the local chapter of the Catholic organization Courage International, which offers support to men and women who experience same-sex attraction and have chosen to live a chaste life.

The 47-year-old priest, who goes by “Fr. Thom,” also has experience as a parochial vicar, university and high school chaplain, campus minister, and theology teacher.

For the last almost four years, he has also been the Davenport diocese’s leader for the Synod on Synodality, which he described in a 2021 homily as “about how we go about listening to each other, how we go about our mission as the Church, the Body of Christ, in our present age, to better communicate and better embody the Kingdom of God on earth.”

Born on July 4, 1978, in Ottumwa, a town in southeast Iowa, Hennen’s hobbies include strategy board games, reading, and playing the tin whistle and the violin, according to a 2009 interview. He has also said he first felt a call to the priesthood in the fourth grade.

He completed his studies for the priesthood at Saint Ambrose University in Davenport and the Pontifical North American College in Rome, earning a bachelor’s in sacred theology from the Pontifical Gregorian University in Rome. A year after his 2004 ordination to the priesthood, he also earned a licentiate in sacred theology from the Pontifical Alphonsian Academy in Rome.

The bishop-elect speaks Spanish and Italian in addition to his native English.

The Diocese of Baker covers 66,800 square miles in eastern Oregon. Considered a mission territory, the diocese’s landscape includes mountains, hills, valleys, rivers, lakes, and plains, and has a population of approximately 12,500 Catholic households across 57 parishes and missions.

In 1987, the Baker diocesan offices were moved to Bend, in central Oregon, while the Cathedral Church of St. Francis de Sales is over 200 miles east in Baker City.

Hennen succeeds Bishop Liam Cary, who has led the Baker diocese since 2012. Cary will turn 78 in August, making him nearly three years past the usual age of retirement for Catholic bishops.