The bishop-elect will take part in a livestreamed press conference from the cathedral's parish hall Nov. 17. Afterward, he will offer Mass in the cathedral.
"I am overwhelmed by the trust and confidence the Holy Father has placed in me in appointing me the Bishop of Youngstown," Bonnar said in a Nov. 17 press release from the Diocese of Pittsburgh.
Bonnar's bishop, David Zubik, said "there is no question in my mind that Bishop-elect Bonnar is most qualified to take on his new responsibilities. For the vast majority of his 32 years as a priest, he has served in parish ministry. The faithful of Youngstown can look forward to very strong pastoral leadership on the part of their new bishop."
Bonnar was born in Pittsburgh in 1962, the fourth of five children. His father was a butcher and his mother a homemaker. They are now deceased.
After attending Catholic grade school and high school, he graduated from Duquesne University with a bachelor's degree in social communications.
As a seminarian, he studied in Rome at the Pontifical Gregorian University. He was ordained a priest for the Diocese of Pittsburgh in 1988, serving in several different parishes and as a part-time high school chaplain.