Our Clergy


The Reverend Pierre-Henry Buisson


Born and raised in a France, Father Pierre-Henry was ordained a Roman Catholic priest by his bishop Jacques David, in the St Pierre Cathedral of Saintes, on April 29, 1990. Before he was ordained he served six years in the French Army, as a sergeant, and attended the Seminaries of Poitiers, and Bordeaux. After his ordination, Father Pierre-Henry was sent to the parish of Mirambeau, France, as associate rector. He knew the parish very well since it was his Field Ed. parish for 3 years, he was especially in charge of youth and children ministries. After serving the parish of St Genis de Saintonge, in the same area, he became the Rector of Archiac.  On September of 1996 he resigned his position of rector and asked Sophie for her hand in marriage.

He became an employee of an energy company, Gaz de Bordeaux, where he served in various positions, from working to the mail office, to being a customer agent, and a purchasing agent.  He could not hide his past, and even if he did not belong to any church at that time, he was a kind of ‘bi-vocational’ priest to whom people could confide and ask questions.

He discovered the Episcopal Church, and the Anglican Communion in April 2000 after the birth of his second child, Pauline. In 2001 he was received in the Episcopal Church by Bishop Jeffrey Rowthorn, and started with his wife the French Speaking Mission Saint Martin, in Bordeaux.

In January 2003, he was received as a priest by Bishop Pierre Whalon, and in March 2003, when his 3rd child Clement was baptized, he officially became the Priest-in-Charge of the Mission St Martin.

In 2008 Pierre-Henry, Sophie, Raphael, Pauline and Clement moved to Alexandria, Virginia. Pierre-Henry studied at Virginia and received his Master of Theological Studies in May 2010. After graduation, Pierre-Henry accepted the call to be the Assistant Rector of St Martin’s in the Field, in Severna Park, MD. He was also the Chaplain of St Martin’s Episcopal School where he had the joy to teach and celebrate weekly chapel services.

The Reverend Denise Muller



The Rev. Denise Muller is excited to be called to serve as the Assistant Rector at St. Luke’s Episcopal Church beginning in July 2018. She graduated with a Diploma in Anglican Studies at the Episcopal Seminary of the Southwest in Austin, Texas in May 2018.

A native of Phoenix, Arizona, Denise graduated Magna Cum Laude with a Bachelor of Arts in Anthropology at Arizona State University in 1997. Following the completion of a Masters in Public Health at Loma Linda University in 2000, Denise held positions in HIV, drug, and violence prevention at the Arizona Department of Education for several years. During this time she began studying at Fuller Theological Seminary and completed a Masters of Arts in Theology and Biblical Studies in 2008. Following her seminary studies, she was the Arizona Field Director at a national prison ministry organization, managing over 200 volunteers statewide, interfacing with the Arizona Department of Corrections on their behalf, as well as training and coaching various congregations in establishing prisoner reentry ministries in partnership with each other and local organizations.

While working in prison ministry, Denise enrolled in a spiritual direction program and discerned a vocation as a spiritual director. In this ministry, she became devoted to practices drawn from Benedictine and Ignatian spiritualities, and to companioning and supporting others in noticing and discerning the presence of God in the ordinary rhythms of life. She continues to serve as a spiritual director.

While in the spiritual direction program, Denise began attending Episcopal worship services. She was moved by encountering the Holy in the liturgy and found resonance with the Episcopal tradition’s embrace of a broad range of theologies and spiritualities woven together within common patterns of prayer and worship. While preparing for confirmation in the Episcopal Church, Denise and people close to her began to wonder if she might also be called to Holy Orders. She started the formal process of discernment for the priesthood at Trinity Episcopal Cathedral in Phoenix, where she actively served in liturgical and pastoral care ministries until she moved to Austin in summer 2016 for her seminary studies in formation for the priesthood. While in Austin, she served at St. David’s Episcopal Church and worked as a chaplain intern at Seton Hospitals.

Hiking in nature, journaling about dreams and daily life, engaging in centering prayer, and noticing the presence of the Holy in the mundane are among the practices that nurture Denise’s soul and keep her rooted in the Ground of Being. These practices complement and sustain her devotion to various forms of ministry. Her primary call in ministry centers on guiding people to dwell in the love of God and grow more deeply into who they have been created to be. She is passionate about the Church being a place where all people may experience a sense of belonging in community, encounter the loving presence of God, and be strengthened to seek and serve Christ in all persons.

Assisting Priests

The Assisting Priests are a group of retired and experienced priests who bless St. Luke’s by sharing generously their time and talents. All of them assist with leading worship, occasionally preach, and offer significant pastoral ministries according to their passions.

The Rev. Jack Wolter

Among many things, Father Jack teaches our Inquirers’ Class twice a year, and works closely with the membership commission, using his administrative skills to maintain an accurate membership database.

The Rev. Bob Wills

Father Bob Wills, M. Div., MSW has worked professionally in parish positions since his ordination to the priesthood in 1968.  In 1972 he graduated with an MSW from Wayne State University, Detroit, and worked for 20 years in a research and training mental health hospital in Detroit.  He became an adjunct professor of clinical studies in both the School of Social Work and the Medical School at Wayne State.  In 1992 he established a private clinical practice specializing in marriage and family therapy.  He retired from his professional practices in 2007 and moved to Prescott.  At St. Luke’s he volunteers (no fee) as a counselor and therapist for people with problems related to management of life and relationship issues.  He also conducts a popular discussion group; open to anyone, in progressive Christian studies, 5 p.m. to 6 p.m., Wednesday evenings.  Father Bob is known as a knowledgeable and effective teacher and discussion leader.

The Rev. Richard Lassiter

Father Richard serves as the chair and facilitator of St Luke’s Men’s Group, and celebrates the Eucharist on a monthly basis at a Retirement Home.



Deacons belong to one of three historic orders of ordained ministry—Bishops, Priests, and Deacons. In the Diocese of Arizona, Deacons serve in a parish setting by mutual agreement of the Bishop, the Rector, and the Deacon. All of them assist with leading worship, occasionally preach, and offer significant pastoral ministry. In addition, each is required to have a ministry that helps to make connections between the members of the parish and the community in which we live. The Deacons serve without financial compensation.

The Rev. Kimball Arnold


Deacon Kimball attended Northern Arizona University. She has served a number of volunteer organizations in various capacities. She responded to God’s call to become a Deacon when she was at St Luke’s, and was ordained in 2000. She is certified by the American Academy of Bereavement. Deacon Kimball is the clergy liaison for Outreach.


Christine Christy


Deacon Chris came to St. Luke’s in 2006 and became ordained in 2016. A Nurse, for over 40 years, her greatest love has been in the people she has met and been able to help along the way. As a parishioner at St. Luke’s she has served on the Vestry, Daughters of the King, Blood Drive Coordinator, Cursillo Team Leader and Spiritual Team member, Don’t Eat Christmas Alone Dinner, and Board Member for the Arizona Sewing Works. Her service within the community has been full of many opportunities such as Health Fair Educator, Medical Corp Responder, CPR Instructor, and People Who Care. Her love and focus is in meeting and listening to people. Helping people through their troubled moments and watching them grow in Christ is a true blessing. She has currently been assigned as Clergy Oversight for Pastoral Care where she is intently working to bring the church to the homebound and those living on the fringes in our society.