Our Priests


Meet our Priests and Deacons

Pastor: Reverend Monsignor John M. Costello

Fr. Jack Costello

Ordained in 1972, Msgr. Jack Costello became pastor of St. Peter in February 2005. He has roots in the parish because his family has lived in the area for more than 50 years. He was an assistant at St. Peter for five years in the 1980s when Fr. Ed Deutschmann was pastor. Many of his nieces and nephews still live in the area.

When Msgr. Jack returned to St. Peter, he brought with him a masterful way of bridging the gap between the teachings of the church and contemporary life. Preaching themes of reconciliation, daily prayer, celebration, work-life balance and quoting authors such as Stephen Covey, Msgr. Jack is able to relate the message of the Gospels to the pressure of society in the twenty-first century. And yet, he remains in touch with the importance of the long standing traditions of prayer and liturgy.

In 2006, Msgr. Jack began the St. Patrick's Day Parade that quickly became a parish tradition that is an enjoyable event every year! To contact Msgr. Jack, please call the rectory at 314-966-8600 or email at jcostello@stpeterkirkwood.org.

Associate Pastor: Reverend Paul Hamilton

     Fr. Paul graduated Chaminade College Prep. in 2004, and entered seminary the following semester. He studied at SLU, The Catholic University of America, and Kenrick-Glennon Seminary.   

Fr. Paul Hamilton was ordained in 2014. He spent the first four years of his priesthood serving the people of Sacred Heart Parish in Florissant. Since 2016, he has been an adjunct on the philosophy faculty at Kenrick-Glennon Seminary, teaching courses in logic and political philosophy. In 2018, he was transferred to St. Peter in Kirkwood. Philosophy is a passion of his, although he finds it a shame that it has become a specialized discipline for professionals. He thinks philosophy is every person's project, whether they know it or not. His preaching seeks to combine philosophy and the Gospel, making both accessible to average people.

Fr. Paul is a fair weather Cardinals fan, and a die-hard Blues fan. He still plays pick up hockey during the winter months. His favorite work of fiction is the Lord of the Rings; his favorite Catholic book is With God in Russia, the autobiography of the American Jesuit Walter Ciszek, who spent 15 years in a Russian gulag.  His favorite work of philosophy is Aristotle's Politics. His favorite saint is St. Thomas More. Finally, if you love dogs, you are his friend.

To contact Fr. Paul Hamilton, please call the rectory at 314-966-8600 or email at phamilton@stpeterkirkwood.org.

Senior Priest in Residence: Reverend Monsignor Gregory L. Schmidt

Fr. Gregory Schmidt

Msgr. Greg was born on March 25, 1936 in Richmond Heights, the youngest of six children. His father died when he was one year old. He attended St. Luke’s and St. Mary Magdalen (city) grade schools and went to Prep Seminary H.S., Kenrick Seminary. Msgr. Greg was ordained in 1961 and celebrated his first Mass at St. Luke’s. He was associate at St. Ferdinand, St. John the Baptist, St. Sebastia, St. Paul and Epiphany all in the St. Louis area. He taught high school Religion at St.Thomas Aquinas and St. John the Baptist. He was pastor of Ste. Genevieve Church in Ste. Genevieve, MO from 1981 to 1987, St. Margaret Mary Alacoque in Oakville from 1987 to 1994 and Immaculate Conception, Old Monroe, MO from 1994 to 2011. He served as Chaplain of Mo. State Highway Patrol from 1998 to 2011. He has been Priest Moderator of the Archdiocesan Respect Life Apostolate since 2001. He retired from pastorate duties in 2011, and has been in residence at St. Peter since June 2011.

Msgr. Greg is very happy to be living here at the parish rectory. He enjoys the company of Msgr. Jack and Fr. Mike as well as the active parish life and liturgical life of the parish family. His hobbies include travelling, playing Bridge and playing Racketball.

To contact Msgr. Greg, please call the rectory at 314-966-8600 or email at gschmidt@stpeterkirkwood.org. .

Deacon John Komotos

Deacon John was Baptized, 1st reconciliation, 1st Communion, Confirmed and married at St. Peter Church. He went to St. Peter school then went on to Kirkwood Public schools. He met his wife Kay in high school and married in 1978. Their son and only child John was born in 1981 and is living in Sacramento with his family. John was involved with coaching for St. Peter many years and was a member of the parish council for 10 years. After attending a Cursillo retreat he knew he was called to be a deacon. John started his studies in 2003. At that time it was a three year program, mid way through his studies they made it a five year program, college level courses. By the grace of God, John was Ordained in 2008 and celebrated his first Mass at St. Peter on Pentecost and it was also Mothers Day with his mom in the congregation. John is involved in RCIA as a catechist, his passion. He is also involved in the adult faith formation committee, liturgy committee, ACTS, Person to Person as well as his liturgical obligations.

Deacon John loves being a deacon at his home parish. It does not pay in money but it does pay in his relationship with our wonderful community and his relationship with our Lord and savior Jesus Christ. 

To contact Deacon John, please contact the rectory at 314-966-8600 or email komouno@hotmail.com.

Deacon Richard Renard 

Deacon Dick Renard and his wife Kay have been members of St. Peter Parish for 10 years, married for over 43 years, have three daughters and 14 grandchildren and recently retuned to St. Peter from the Savannah Ga. Diocese. Dick was ordained in 2007, was employed by the Boeing Company and considers it a great joy and privilege to have been assigned to St. Peter Parish and to serve its parishioners as a deacon.

To contact Deacon Renard, please call the rectory at 314-966-8600 or email renard2285@sbcglobal.net.

Deacon Joseph Sulze (retired)

To contact Deacon Joe, please call the rectory at 314-966-8600.