Church Leadership

John Knox Presbyterian

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REV. Dr. Jeff K. London

Pastor & Head of Staff

Dr. London received his bachelor's degree in history from Westminster College, New Wilmington, Pennsylvania, in 1984; his Master of Divinity degree from Union Theological Seminary, Richmond, Virginia, in 1988; and his Master of Arts in Christian Education degree from The Presbyterian School of Christian Education, Richmond, Virginia, in 1989. He also received his Doctorate in Preaching degree from McCormick Seminary, Chicago, Illinois.

Tina Colston

Office Administrator

Tina Colston enjoyed a rewarding career in Orthodontics as office administration, marketing, sales, and public relations. Tina has been involved in art most of her life. She enjoys interior design, holiday decorating, and fashion consulting.  

Her responsibilities include officeadministration, congregational assistance, pastoral support, and generally ‘holding down the fort.’ Tina is married to Doug, and they have two children & two grand dogs.  Both sides of the family were born and raised in Tulsa, and they love all things Tulsa!

Judith Popp


Judith has been the organist at John Knox since 1991. She received her Bachelor of Music degree with a major in organ performance from Western Michigan University and keeps us on track musically every Sunday morning. Judith also conducts the Angelus Ringers handbell choir and gives private piano lessons.

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Sydney Consedine

Happy Campers Center Director

Sydney Consedine has been the John Knox Happy Campers Center Director since June of 2017. She was born and raised in Tulsa and has spent her entire career working in childcare. Sydney, who lives in Midtown Tulsa, loves spending time with her two daughters Piper and Scout, as well as her husband Stephen.

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Tracy Watson 

Coordinator of Music Ministries

Tracy has served as Coordinator of Music Ministries at John Knox since 2003. He conducts the Sanctuary Choir, From the Heart Singers and plays piano for the House Band. Tracy retired as an educator in 2017 and is a Realtor. A retired actor, music directed and accompanist for several. Tracy holds a Bachelor of Music Education degree from East Central University.

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