Dr. Lonnie Allison
Dr. Allison serves as the Executive Director of the Billy Graham Center, and also the Institute of Strategic Evangelism, at Wheaton College. There he directs a comprehensive team that seeks to be a "nerve center of evangelism" for the evangelical world. Lon is a Christian communicator, educator, pastor, and performing artist who has served as a youth minister, as pastor of three Evangelical Covenant churches and as a guest speaker at churches and conferences throughout the last 25 years.
In addition to being a lecturer and public speaker, Lon has a professional background in music and theater. His presentations to churches and conferences often combine speaking, music and drama in such a way as to be both informative and compelling.
Lon and his wife reside in West Chicago, Illinois, along with their three children.
Dr. Jerry Root
Director, Evangelism Initiative
Dr. Jerry Root serves as the Associate Director of the Institute of Strategic Evangelism. In this role he heads up Wheaton College's Campus Evangelism Initiative (EI) to make "a lifestyle of evangelism" part of what it means to be a whole and effective Christian at Wheaton College. Jerry also teaches evangelism courses at both the undergraduate and graduate level.
Jerry was born and raised in Southern California and grew up in a Christian family but did not become a Christian until his freshman year at Whittier College. He has pastored three different churches over 23 years, and 19 of those years were invested in student ministry. While pastoring he taught courses in philosophy and on C.S. Lewis for ten years at the College of DuPage (Glen Ellyn, Ill.). Jerry is visiting professor at Biola University, Talbot Graduate School of Theology and Trinity Evangelical Divinity School. Before transferring to ISE, Jerry was a full time assistant professor since 1996 with the Christian Formation & Ministry Department.
Jerry has lectured and preached in 16 countries, 25 states, and has lectured in 38 colleges or university campuses. He has written "CS Lewis and A Problem of Evil: An Investigation of a Pervasive Theme" and co-edited "The Quotable C.S. Lewis," and "The Soul of Lewis," and has produced study guides and booklets on friendship evangelism. He has contributed to other books and had presented a number of lectures on C.S. Lewis, evangelism, and spiritual formation.
Jerry and his wife live in Wheaton, Illinois, and have four grown children, all of whom are married.
Dr. Peter Walters
Assistant Director, Evangelism Initiative
Peter Walters is Assistant Director of the Evangelism Initiative (EI) at Wheaton College. His role is to establish and maintain lines of communication with colleges that have been introduced to the EI vision. He is also a professor at the Applied Health and Sciences department at Wheaton College, where his job responsibilities are teaching, scholarship, service, and mentoring Wheaton College students. Peter holds a PhD in Kinesiology and is a Certified Strength and Conditioning Specialist. He is author of more than three dozen books, articles, and abstracts on issues relating to health, wellness, and sports medicine and a frequent lecturer on body image. He also serves as president of the Christian Society for Kinesiology and Leisure Studies.
Peter is very involved in physical fitness, having finished a number of triathlons, power lifting championships, and having climbed a number of mountains. He and his wife Margery live in Wheaton, Illinois.
Rev. Chris Castaldo
Director of the Ministry of Gospel Renewal
Rev. Chris Castaldo serves as the Director of the Ministry of Gospel Renewal for the Billy Graham Center at Wheaton College. Originally from Long Island, New York, Chris was raised Roman Catholic and for years worked full-time in the Catholic Church alongside bishops and priests.
His ministry focuses on equipping evangelicals with the requisite knowledge and tools for constructive witness among the 99 million partially-evangelized persons in America—those who possess a nominal connection to the church, but for whom the gospel is missing. His approach seeks to convey the delicate balance of grace and truth—genuine love for people with gospel conviction. Chris is author of Holy Ground: Walking with Jesus as a Former Catholic (Zondervan, 2009). He is currently pursuing a PhD which examines the doctrine of justification in the writing of Peter Martyr Vermigli and John Henry Newman. Chris, his wife, Angela, and their four children live near Chicago.
Ministry of Gospel Renewal >>
Jean joined the ISE staff in October 1999. She had worked previously in the Counseling Department of College of DuPage before coming on staff at the Billy Graham Center. Jean is responsible for providing administrative support with the Institute, conference coordination as well as the other administrative tasks of ISE.