Full-Time Faculty and Administration

The faculty of Trinity Graduate School draws upon the regular and adjunct faculty of the other schools of Trinity International University. The following university faculty regularly teach and work with the graduate school. The date that follows the listing of each faculty member indicates the beginning year of service at Trinity.

Gregory C. Carlson, 2007
Director of Leadership program
Professor of Leadership
Director of Church Relations 

BA, Grace University (Omaha)
MACE, Biola University Talbot School of Theology
PhD, University of Nebraska, Lincoln

Before Trinity, Dr. Carlson served as a pastor (13 years); dean of graduate studies and Christian education professor at Grace University (Omaha); and global training director for Awana Clubs International. Areas of research and teaching interest include leadership, teaching the Bible, educational ministry and family ministry. He has authored and edited a variety of books including Understanding Teaching Creatively Prompting Biblical Life-Change (Evangelical Training Association) and Rock Solid Teacher; Discover the Joy of Teaching Like Jesus (Bethany). Dr. Carlson is an associate instructor with Walk Thru the Bible and often speaks in ministry and leadership settings.  

William P. Donahue, 2012
Associate Professor of Pastoral Theology

AB, Princeton University
MABS, Dallas Seminary
PhD, University of North Texas

After working in the marketplace for P&G and PNC Financial Corp., Dr. Donahue served in various pastoral roles in churches in Texas, Pennsylvania, and Illinois, including 18 years with Willow Creek Community Church and the Willow Creek Association. While at Willow Creek he developed leadership strategies and events for over 10,000 leaders on 6 continents.  He is also Founder and President of The LeaderSync Group, Inc., a leadership development and consulting organization. His areas of expertise include organizational strategy, team building, leadership development, and transformational community. He has published over 20 books and leadership training resources, including the best-selling Leading Life-changing Small Groups, Coaching Life-Changing Leaders (with Greg Bowman), Building a Life-Changing Small Group Ministry (with Russ Robinson), the DVD series Making Small Groups Work (with Henry Cloud and John Townsend), Building Biblical Community (with Steve Gladen), In the Company of Jesus, the Jesus 101 Series, and The Irresistible Community: An Invitation to Life Together.

Kristin Lindholm, 1994
Professor of Communication

BA, MA, University of Illinois
MA, Trinity Evangelical Divinity School
PhD, University of Illinois

Dr. Lindholm teaches how human communication occurs in a variety of contexts. She specializes in how people communicate about health-related concerns in interpersonal and organizational settings. Dr. Lindholm has co-authored several papers and book chapters, and she has received four awards for her achievements in education. She is a member of the National Communication Association.

Wendy L. Martin, 2006
Wesley Anderson Chair of Business
Professor of Business

BS, University of Colorado
MBA, University of Michigan
PhD, University of Illinois at Chicago

Before beginning her career in teaching, Dr. Martin enjoyed a career in consumer goods marketing management at Procter & Gamble and Schering-Plough Healthcare Products. She joined Trinity after teaching for twelve years at another Christian college. Her primary research interest focuses on marketing for ministries, while her additional research efforts on intergenerational family businesses have yielded several awards, including best papers and the designation as a Family Business Research Scholar.  


Karen A. Wrobbel, 2003
Dean, Trinity College and Trinity Graduate School 
Professor of Education

BA, Biola University
MA, Wheaton Graduate School
EdD, University of Minnesota

Dr. Wrobbel brings many years of experience to the dean's role, having served at Trinity both as a teaching faculty member and as a recognized leader on the campus through responsibilities including director of the Division of Education, Associate Dean, and chair of faculty councils, committees and task forces. Before joining Trinity’s faculty, Wrobbel taught missionary kids (MKs) and other international students in Christian schools in Spain and Venezuela; she speaks Spanish fluently.  Dr. Wrobbel continues to be actively involved internationally with Christian education through conference speaking, accreditation work, and as a volunteer with two educationally-focused international groups.  Her expertise and research interests include the education of MKs and other global nomads, languages and education, and intercultural communication. She recently completed a book, The Globally Mobile Family's Guide to Educating Children Overseas, that combines her personal and professional experience with research to create this guide for expatriate families. Dr. Wrobbel’s articles have appeared in several publications, including Missiology, Evangelical Missions Quarterly, and Christian School Education.