Trinity Study Center...Who We Are!

Cathy Deddo is the author of the Bible Studies on this site. She is a Bible teacher, speaker and retreat leader. She and Gary, her husband, have three children, Linda, Gregory, and Krista.

Cathy received biblical and theological training from Fuller Theological Seminary and received an MA degree. Cathy’s full-time ministry began as a campus staff member doing inter-denominational ministry for Inter-Varsity Christian Fellowship with university students. She has taught the Bible for a wide variety of age groups and in many different contexts: neighborhoods, churches, retreats and conferences and on university campuses. She and her husband have hosted home fellowship groups for most of the 25 years of their marriage. Cathy has led leadership training seminars for small groups and for leadership development in the church context. She has been the guest speaker at numerous retreats on topics ranging from the Message of James to Building Loving Relationships and Learning to Worship the Triune God. She and Gary have also served as co-speakers at retreats.

She is presently a member of a Presbyterian Church (EPC) in the western suburbs of Illinois. She homeschools her youngest child, leads a neighborhood Bible study as well as a bi-weekly Bible study for adults with Gary.

What Cathy says about her ministry...
Contact Cathy about Teaching, Seminars and Writing through email:
cathytrinitystudycenter.com

Gary W. Deddo serves as Associate Editor for Acquisitions at Inter-Varsity Press. Gary received his initial and formal biblical and theological training from Fuller Theological Seminary receiving a Master of Divinity degree. He served as a campus minister with Inter-Varsity Christian Fellowship for 20 years before becoming an editor at Inter-Varsity Press. He continued his theological studies at Kings College of the University of Aberdeen, Scotland under the direction of Rev. Prof. James B. Torrance and was awarded a Ph.D. degree. Gary was ordained to his ministry with Inter-Varsity Christian Fellowship by the PCUSA in the San Gabriel Presbytery. Gary is president of the T.F. Torrance Theological Society.

Gary has taught theology for Fuller Seminary Extension in Colorado Springs for the past 10 years. He and his wife, Cathy, have co-authored a book on the writings of George MacDonald. He has also written a book on theology published by Peter Lang, in their systematic theology series.

Gary and Cathy host a weekly fellowship and study in their home. Gary has been a speaker at numerous retreats, conferences and seminars in both the university and church contexts. He has also been involved in leadership development of elders, small group and Bible study leaders.