OUR TEAM
STAFF
Dr. Tim Johnson
Tim is a graduate of West Point and is a veteran. Before pursuing his theological education, Tim worked in local, state, and national government. He received his Master’s in Theological Studies from Bethel Seminary (St. Paul, MN) and his Ph.D. in Scripture from Marquette University (Milwaukee, WI), specializing on Job. He taught Old Testament and Hebrew at Nashotah House Theological Seminary (Nashotah, WI), has published academic papers in this field, and is a member of the Evangelical Theological Society. After serving in a number of pastoral roles, including as Executive Pastor, in 2010 he accepted a call to serve as Senior Pastor of Rock Valley Church (Beloit WI; Fellowship of Evangelical Bible Churches). After 15 years in this role, he feels called back to the academy, to serve as Executive Director of the Bradley Study Center.
Tim’s vision for the study center builds on our mission to foster a thoughtful Christian witness on campus and our vision to engage the university with the intellectual and spiritual riches of the Christian faith!
Brittany Lattner
James Depret-Guillaume
James develops the activities and cultivates the student relationships at the study center — from reading groups to the Fellows program to large-scale events. He’ll likely be the first face you meet or person you email as a student involved with the study center.
James grew up in Roanoke, VA. He studied Mathematics at Virginia Tech, earning both Bachelor’s (’17) and Master’s (’19) degrees in the subject. James spent the next two years in Macon, Georgia, serving as a ministry intern for Reformed University Fellowship at Mercer University. It was during that time that he met and married his wife, Merrianna. James loves soccer, pickleball, pool, board games, and – when he has the time – a little math. He also loves a good story, whether in a book or over coffee with a friend.
BOARD
Taylor Rollo
Taylor Rollo has been the Associate Pastor at Grace Covenant Presbyterian Church since moving to Blacksburg in 2013, including oversight of Christian Education, church community life, youth group, missions, and graduate student ministry. Taylor and his wife, Erika have two boys: Gabriel and Corban.
Paul Carlier
Paul Carlier served as a professor at Virginia Tech for over 20 years, and helped shape the early years of the Christian Scholars Network, which developed into the Bradley Study Center. Today he serves as a professor and the Hans W. Vahlteich Chair in Medicinal Chemistry at the University of Illinois - Chicago, where he leads drug discovery efforts.
Jefferson Jones
Jefferson J. Jones serves in full time ministry as the Senior Leader and Founder of Surge Ministries in Christiansburg, VA. Surge is a college ministry that exists to help students find their identity in Christ while supporting them in life and spiritual formation during the college years.
Ralph Amateis
Jonathan Boreyko
Jonathan Boreyko is an associate professor and the Principal Investigator of the Nature-Inspired Fluids & Interfaces Lab in the Department of Mechanical Engineering. He and his wife, Shanda, are the parents of 4 sons and 1 daughter.
Cliff Ragsdale
Cliff Ragsdale retired from the Department of Business Information Technology at Virginia Tech after serving as a faculty member for 34 years. From 2015 to 2024, he also served as academic director of the Center for Business Analytics where he helped design, launch, and run Virginia Tech's master's program in business analytics. He received his Ph.D. in Management Science and Information Technology from the University of Georgia and also holds an M.B.A. in Finance and B.A. in Psychology from the University of Central Florida. Cliff and his wife Kathy are members of Blacksburg Christian Fellowship. He enjoys Bible study, music, running, boating, and occasional SCUBA diving trips.