Pastoral Staff

Jeff Hamm, PhD Senior Pastor

Jeff Hamm, PhD

Dr. Hamm was born in Germany and adopted by an American couple stationed there with the U.S. Army. His parents also adopted a daughter of Polynesian descent. Jeff thus experienced the diversity of growing up in a bi-ethnic family. He has lived in Europe and Asia—in addition to multiple states in America—plus toured over a dozen foreign countries.  

Jeff graduated from Auburn University with a B.S. in Mathematics (1990). Afterward, he served in the U.S. Air Force for 6 years but separated at the rank of captain in order to pursue the call to ministry. He attended Reformed Theological Seminary in Jackson, Mississippi where he received the Master of Divinity (M.Div.) degree for ordination. Jeff then enjoyed the pleasure of serving as the pastor of the Thomson–Memorial Presbyterian Church in Centreville, Mississippi, for four years. He was also honored to serve as the pastor of the historic First Presbyterian Church of Greenville, Alabama, for ten years.

Most recently, Jeff earned the Ph.D. in Systematic Theology at King’s College, the University of Aberdeen, Scotland (est. 1495). His dissertation—in the field of presupposition apologetics—was published as a book entitled Turning the Tables on Apologetics: Helmut Thielicke’s Reformation of Christian Conversation. Jeff has also accomplished additional research on the doctrine of Christ’s descent into hell. His unique contribution on the matter, challenging 500 years of Reformed interpretation, was published in the Westminster Theological Journal (“Descendit: Delete or Declare? A Defense against the Neo-Deletionists.”

Jeff gives glory and thanks to God for Kelly, a true companion in his pilgrimage on this earth; and for their four children, Joshua, Hunter, Luke and Betsy, whose lives and love are a shelter in the storm and stress of his very existence.  

Pete Jackson Pastor of Congregational Life

Pete Jackson

Born in Gainesville, FL, Pete spent his growing up years in both south Florida and St. Louis, MO. He went to college in Indiana, received his seminary training from Reformed Theological Seminary (Orlando), and has also completed certificate programs in pastoral counseling. Before seminary, he spent 5 years in retail management. He served as the youth pastor for two churches in Florida prior to moving to Atlanta, and has been at ChristChurch since 2001.

Pete came to know the Lord at a young age and growing up in a broken home was greatly influenced by many godly people over the years who exemplified God’s grace. He longs for people to gain a deep understanding of that grace, so they are then motivated to reach out with grace to the community around them. In addition to pastoral care, he works closely with the Diaconate, the Stephen Ministry team, Men’s Discipleship groups, and the Missions team.

Pete and his wife, Paulette, met in college and have been married since 1988. They have two daughters, Emma and Anna Grace, who live in Chattanooga. Pete enjoys all things sports, being outside (when it’s warm), the beach, C.S. Lewis, U2, and of course, Atlanta Braves baseball.

Drew Jones Executive Pastor

Drew Jones

Born in Heidelberg, Germany, Drew grew up all over the US as an Army brat before settling down in Huntsville, Alabama in high school. Prior to moving to Atlanta, he served in lead and staff pastor roles with churches in Illinois and Mississippi, in addition to five years as an active-duty Navy chaplain in Japan and Seattle, Washington.

Drew is a graduate of Auburn University (BS), Southeastern Baptist Theological Seminary (MDiv), and Johns Hopkins University (MBA). He and his lovely wife, Janel, have four children and reside in East Cobb. When not at the church or spending time with his family, Drew enjoys playing tennis, backpacking, and exploring his new hometown of Atlanta.

Ministry Staff

Abe Okie Director of Music & Worship

Abe Okie

Abe hails from Warner Robins, GA but moved to Atlanta to attend Georgia Tech. As a freshman, he providentially began attending a newly-planted church in Buckhead called ChristChurch which became his first introduction to Reformed theology and the historic beauty of Christian hymnody. After graduating, Abe worked in sales but stayed involved in church music while working towards a music BA from Georgia State. During this time, an old ChristChurch friend introduced him to Bethany, who shortly became his wife and favorite collaborative pianist.

In 2010 Abe and Bethany moved to India to teach music and drama at an international boarding school in the foothills of the Himalayas. There they learned how broad and multifaceted the Church is, how beautiful big mountains are, and how delicious Tibetan food is. Before returning to the states in 2016 he earned an MA in Psychology of Music from the University of Sheffield.

Once back in Atlanta, Abe taught at a local school before joining the staff at ChristChurch in 2019. He counts it an unexpected joy to once again serve a congregation in the worship of their God and to be a part of a church that celebrates the art of the city and the diverse musical gifts of the congregation. Abe lives in East Point with his wife and three perfectly-behaved children, Caroline, Sam, and Scarlett. In his free time, he does house projects but dreams of riding his bike.

Katy Cahill Interim Director of Children's Ministry

Katy Cahill

Katy is a Georgia native, born in Macon and raised in Atlanta, having graduated high school from Pace Academy. She earned a BA in Spanish from Furman University and a Bachelor of Science in Nursing from Emory University and has worked as a pediatric RN for Children’s Healthcare of Atlanta since 2007.

Katy and her husband, Paul, started attending ChristChurch in 2005, the same summer they were married. Together with Paul, she has served in the children’s ministry for 11 years in various capacities, most recently as the Preschool Coordinator. In this role, Katy is passionate about teaching children about God through His living and active Word. In addition, she feels a strong desire to help equip parents in their God-given roles to disciple the children within their home to know and love Jesus. Katy’s three children, Mary Frances, Margaret, and George, are a strong motivating force to reach ChristChurch’s children for the glory of God and the joy of the next generation.

Hudson Rollman Director of Student Ministry

Hudson Rollman

The second oldest of nine children, Hudson was born in Baltimore, Maryland, and bounced from state to state before landing in Middle Tennessee for his high school years. He spent time in East Tennessee while attending Carson-Newman University, where he graduated with his B.A. in Religion. In God's kindness, Hudson was introduced to RUF and began to experience God's grace in new ways.

Before moving to Atlanta, Hudson served as a Student Ministry Pastoral Resident at Village Seven Presbyterian Church in Colorado Springs, where he met his wife, Chelsea. He enjoys mountain biking, baseball, basketball, exploring coffee shops, and being with people. Hudson has two passions related to student ministry. First, he has a passion for partnering with parents in their students' discipleship and seeing those students love Christ, their local church, and their city. Second, he has a passion for communicating to students and their families the transforming power of God's grace and their adoption as sons and daughters.  

Support Staff

Karen Johnson Accountant

Karen Johnson

Karen is a CPA who joined the ChristChurch staff in December 2016. A native of metro Atlanta, she earned a BS in Management with an Accounting minor from Georgia Tech. After graduation, Karen's career has included tax and audit work with several public accounting firms and traveling internationally for BellSouth as an Internal Auditor. Karen enjoys her role as an accountant for a ministry-minded team.

Together, Karen and her husband Greg have two daughters and reside in East Cobb. As a family, they have been active members of Johnson Ferry Baptist Church for 17 years. When not at church or work, they enjoy attending Georgia Tech sporting events, high school sporting events, and walking their dog at the Chattahoochee River.

Carl Jones Facilities Director

Carl Jones

Carl is originally from Birmingham, Alabama where he began his career in facility management at Briarwood Presbyterian Church. After 5 years, he then moved to Atlanta where he served at the Perimeter Presbyterian Church for 15 years. Carl has been at ChristChurch since 2002. When not putting out fires at the church, he enjoys bowling, lifting weights, and dreaming of Christmas.

Lisa Griscom Office Administrator

Lisa Griscom

Lisa joined the ChristChurch staff as Administrative Assistant in June 2018 and moved into the Office Administrator role in July 2019. A native of metro-Atlanta, she graduated from Kennesaw State University in 2015 with a Bachelor of Science in Human Services. Lisa has been attending ChristChurch since 2010. During her school years she worked in different administrative roles and went into her degree program feeling God’s leading to work in the non-profit world. Lisa married fellow CCP member Matt Griscom in August of 2019.

Rebecca Peed Arts & Media Assistant

Rebecca Peed

Rebecca grew up in Zambia, Africa and moved to the suburbs of Chicago, IL during high school. She graduated from Indiana Wesleyan University with a degree in Art and a focus in Studio Painting. Upon graduation, she moved to downtown Chicago where she worked as the Image Specialist for an illustration studio.

After four cold Chicago winters, Rebecca moved to Atlanta for more sun and became the studio assistant to a successful Atlanta painter. The time spent working in his art studio proved to be invaluable for learning how to run an art business. After three years, Rebecca left to pursue her own fine art. She continues to paint and sell her art online, while also working as the Arts and Media assistant for ChristChurch.