Timothy Keller

Chairman and Co-Founder
Manhattan, NY

Timothy Keller is Chairman of Redeemer City to City and the founding pastor of Redeemer Presbyterian Church in Manhattan, which he started in 1989 with his wife, Kathy, and three young sons. For over twenty-five years he has led a diverse congregation of urban professionals that has grown to a weekly attendance of over 5,000.  

Dr. Keller grew up in Pennsylvania and was educated at Bucknell University, Gordon-Conwell Theological Seminary and Westminster Theological Seminary. He previously served as the pastor of West Hopewell Presbyterian Church in Hopewell, Virginia, Associate Professor of Practical Theology at Westminster Theological Seminary, and Director of Mercy Ministries for the Presbyterian Church in America.


Steve Shackelford

Chief Executive Officer
Manhattan, NY

Steve Shackelford oversees the development, oversight and execution of the global strategy of Redeemer City to City as Chief Executive Officer.

He comes to CTC with a long history of business and leadership experience—from his tenure with PWC, an international accounting firm that included stints in Paris and New York, to his senior leadership roles in the real estate sector with CNL, an Orlando, Florida based private investment management firm. Most recently, Steve served as President of one of the largest business development companies in the United States, co-advised by CNL and KKR, a leading global investment management firm.

Steve and his high school sweetheart, Lisa, have been married for 30 years. They have three adult children and one grandson. Their children live in Atlanta, Brooklyn and Nashville.
Steve enjoys running, tennis, travel and history. After 20 years in Orlando, he and Lisa have relocated to the Upper West Side of NYC. 



Global Programs


Clay Cook


Vice President, Advancement
Manhattan, NY

Clay serves as the Vice President of Advancement for City to City (CTC), where he leads the Advancement Team as they engage with national and global donors and foundations to provide the funds to fuel our ministry efforts. 

Prior to City to City, Clay worked with Cru for 21 years, including the last nine years in New York City. During his time in the city, he was an Executive Director with Cru’s city ministry as well as 2 years at The King’s College in their Advancement Department.

Before moving to NYC, Clay worked on several college campuses with Cru in the southeastern United States and in East Asia. Clay has an M.A. in Biblical Studies from Reformed Theological Seminary as well as a B.S. in Chemistry and Biology from the University of Alabama. He is married to Lyn and has twin 13 year-old daughters, Hope and Emma. Clay enjoys a wide variety of music, good food and college football.


Tim Cox

Tim Cox.jpg

Director, Communications & Media
Brooklyn, NY

Tim Cox manages social, email, technology and this very website for City to City. 

His work in recruiting and web marketing for three Christian universities prepared him for this role. His degree in music did not.

Tim and his wife Karen live in Park Slope, Brooklyn with their four cats. 


Katie Ellis

Katie Ellis.jpg

Operations Manager

Katie works with projects, initiatives and policies that help CTC run better. This can include anything from building out our new employee on-boarding processes, improving staff communication and planning, or facilitating conversations about how to improve our staff culture. Operations has a hand in it all. Prior to this, she spend 3 years managing programs related to CTC's work in Asia Pacific and Latin America.

Katie studied Business, Art and Community Development at Covenant College and is currently working on a Masters in Arts and Cultural Management at Pratt Institute here in New York City. 


Sarah Grover


Manager, Seminary and Salesforce Administrator
Manhattan, NY

Sarah wears two hats at CTC. One hat is Salesforce Administrator, where she is in charge of administrating and supporting all departments when using Salesforce. WIth the other hat, she is in charge of the day-to-day logistics and resources of the burgeoning seminary If you need to know something related to what we’re doing at CTC, or check out a book from our ever expanding library, talk to Sarah.

Sarah recently graduated from Pratt Institute with a Masters in Library and Information Sciences. Originally from Virginia, Sarah has lived in New York City for over a decade, and can now look at a random street corner and tell you what used to be there before a bank moved in. In her free time, Sarah enjoys running, listening to podcasts, competing in Simpsons Trivia, spending time with friends and enemies alike, and reading an exorbitant number of books with her book club.



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Kimberly is City to City's Senior Director, Operations and oversees internal operations. She works closely with the CEO to develop, grow and cultivate the spiritual and organizational health of the ministry. Kimberly has worn different hats throughout her career but she most enjoys managing people, processes and projects.

Kimberly grew up in Orange County, CA but is a true city girl. She's been blessed to live in such great cities such as San Francisco and Paris, but it's New York City that has captured her heart.

She finds joy in traveling, reading, extending hospitality, spending time with friends and finding any excuse at all to be in Central Park. She is passionate about sharing the gospel and discipleship and considers it a privilege to be on the CTC team.

Kimberly lives on the Upper East Side in Manhattan.


Rebekah Knable


Manager, Advancement
Manhattan, NY

Rebekah creates community and engagement opportunities for those who financially support the CTC mission. Additionally, she manages advancement proposal development and reporting. She is excited to bring her passion for hospitality to the donor experience.

She comes to NY from the rolling hills of Virginia hunt and wine country, but has always had a heart for urban ministry and city life. A lover of beauty and all things creative, Rebekah is looking forward to immersing herself in the art and architecture that the numerous New York neighborhoods have to offer.



Clara Kim.jpg


Clara works on publishing projects based on the work of Timothy Keller and Redeemer Presbyterian Church. She handles publisher relations, licensing and permissions requests, and foreign translations with publishers, agents, and ministries around the world. She also assists with Redeemer City to City’s events and conferences.

Clara previously worked at Nature Publishing Group, where she worked in customer service and operations for the site license business unit, and spent a year with a mission in Trujillo, Peru's third largest city. She has a passion for cross-cultural communication and resourcing leaders in other parts of the world.

Originally from Southern California, she graduated from NYU with degrees in History and Economics and has been a member of Redeemer Presbyterian Church for over ten years.


Christina Jung

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Global Programs AssisTant
Edgewater, NJ

Christina works with the Program Managers in assisting projects that are taking place around the world with City to City.  
Born in Seoul, Korea, growing up in East Coast America, and living in different parts of the world at various points in her life, Christina has developed a love of learning about and fully experiencing different cultures and people.  Currently, Christina lives in New Jersey, but loves working in the city.  She enjoys traveling, reading, visiting art museums, and eating as many different types of foods as she possibly can.


Rachel Martin

communications and media Coordinator
Brooklyn, NY

Rachel Martin works on all things social, web, media, and design. She hopes to share stories of hope and renewal with the CTC community.

Her previous work in non-profit communications at New City Kids has prepared her for her role at CTC. Rachel studied Photography at Savannah College of Art and Design (SCAD) and has also worked in fashion as a photographer and retoucher.

Originally from the San Antonio area, Rachel lives in the Fort Greene neighborhood of Brooklyn where she enjoys the tree outside her window and the amazing morning light. She does not enjoy the constant construction. 


Brandon o'brien


Director, Content
Manhattan, NY

Brandon is responsible for developing and carrying out a publishing strategy that equips gospel movements around the world through books, training, and other content resources.
Originally from Arkansas, Brandon has served in pastoral ministry, worked in publishing, authored a few books, and taught for state and Christian colleges and universities. One of the things that is most exciting to him about his role at CTC is that it allows him to combine his passions for ministry, publishing, and education.

Brandon, his wife Amy, and their two kids live in Washington Heights. They enjoy good food, good company, and exploring New York City.


Margie Peaster

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Director, finance

Margie is responsible for all aspects of City to City’s financial reporting, budgeting, and analysis. After working in the art world for 12 years, she is excited to bring her skills and experience to CTC.

Growing up in the rural Mississippi Delta, Margie always dreamed of being an urbanite. She graduated with degrees in Art History and Accounting from the University of Mississippi and earned her MBA from Millsaps College. She moved to New York City in 2004, settling on the upper west side of Manhattan. She enjoys art, Pilates, travel, being visited by her niece and nephews, and exploring the diverse neighborhoods of the city.


Melanie Penn


Director, Partner engagement, Southeast
Brooklyn, NY

Melanie Penn is a native Virginian and comes from a long line of Presbyterian church planters from the midwest. Before them, she descends from some spiritual radicals who sailed to North America on the Mayflower.

Melanie is committed to collaborating with American philanthropists in the southeast who give major gifts to CTC, and she considers it a privilege to help heroic church planters from all over the world.

She lives in Brooklyn and is also a professional worship leader and singer-songwriter.


Mark Reynolds


VICE PRESIDENT, Operations & leadership Programs

Mark provides oversight of church planter training, assessment, coaching and funding as well as bringing new CTC initiatives to market. 

He is passionate about creating learning programs that further develop leaders to reach their vision of planting new urban congregations and resourcing them through coaching, training and feedback.

Before serving in this current position he was the field director with Mission to the World in Manila facilitating church planting with Filipinos. Mark has also helped plant a church in Columbus, Ohio, served as campus staff with Campus Crusade at Oregon State University, and holds graduate degrees from Covenant Seminary, Aberdeen University and Saint Louis University.

Mark lives with his wife and two sons in Manhattan, all of whom share common affinities for reading, sports, and love for NYC.


Doug Thorson


Senior Director, Partner Engagement
Manhattan, NY

Doug leads the advancement efforts that support CTC's rapidly growing global footprint. He views his role as a calling to help faithful stewards grow in generosity. 

Doug brings over 15 years of experience in developing key partnerships for charitable organizations. He also brings two decades of marketplace experience in communications, strategic selling, and business planning. His passions are mission clarity, strategic planning and execution, and cohesive integration of all communication platforms that are working toward mission advancement.  

Doug is married to Susan and they have four children.  After 28 years in Virginia, they are now living in the Washington Heights neighborhood of Manhattan with their 18-year old son, Brady.


John thomas

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Senior Director, Training
Manhattan, NY

John Thomas is responsible for designing and delivering many of our training experiences for CTC, both in New York and in other global cities. From 2008-2011, he has written and field-tested CTC's Incubator, a transformational training system for urban church planters. His vision is to develop a global cadre of trainers who collaborate in the service of gospel church planting in every city in which we work.

John has been involved in ministry training and church planting overseas, as well as in the US, most recently planting Church of the Redeemer in Atlanta.

John earned a Ph.D. in anthropology with an emphasis in adult education and spiritual formation, and continues to be intrigued by how epistemology, ethos, and cultural values impact the quest to know God and each other.

He is married to Shari, founder/director of Parakaleo, a ministry dedicated to the care and nurture of church planting couples. They live on the Upper West Side of Manhattan.


Stephen UM


Assistant Director, Training
Boston, ma

Stephen Um (Ph.D., University of St. Andrews) is the senior minister of Citylife Presbyterian Church in Boston, MA. He teaches New Testament studies at Gordon-Conwell Theological Seminary, and serves as a council member with The Gospel Coalition.

For the past 25 years, Stephen and his wife, have been involved in several Presbyterian Churches throughout the Northeastern part of the country. He is the author of The Kingdom of God, Why Cities Matter (Crossway, 2013) and the forthcoming commentary on 1 Corinthians from the Preaching the Word series (2015). His sermons and resources are available online at The Center for Gospel Culture.






Jay Kyle


Vice PResident, Global Catalyst
Franklin, TN

Jay works alongside City to City Global leadership in Asia Pacific and Latin America. Their goal is to facilitate church-planting movements and the growing of gospel ecosystems in cities in these regions.

Jay attended high school in Manila, Philippines and graduated with a BA from Belhaven University in Jackson, Mississippi. He received an MDiv from Reformed Theological Seminary in Jackson, Mississippi.

He served for thirty-two years as a missionary with Mission to the World (MTW), the overseas mission arm of the Presbyterian Church in America. During those years he worked with Wycliffe Bible Translators in Papua New Guinea; founded MTW's Short-term Missions Program; served as MTW's Personnel Director, as their church-planting team leader in Mexico City, and as Field Director for Mexico and Central America.

Jay serves on the Boards of Belhaven University and the Asian Charity Services in Hong Kong.

Jay and his wife, Maureen, live in Franklin, TN and have three grown children and eight grandchildren.





Gary and his family first got involved in church planting as part of a core team in Hawaii in 1980. Soon after that they were called to cross-cultural church planting with the foreign missions arm of the Presbyterian Church in America, called Mission to the World.

He and his family have been involved in church planting, training, mentoring and coaching in Mexico City, Monterrey, Mexico, and Manila, Philippines before joining City to City. Gary's current role is to assist in the training, coaching, and networking among the churches of Japan.

Gary and his wife, Lois, have been blessed with 3 grown children.


Europe, Middle East, And Africa



Al Barth


Vice President, GLobal Catalyst
Boca Raton, FL

Al is an ordained minister in the Presbyterian Church In America. Having planted four churches over his pastoral career, he now works primarily as a Church Planting Catalyst for church planting in major cities - helping to start new movements of churches in leading cities of Europe, the Middle East, Africa and North America. He has served as a coach, trainer and mentor for many global church planters.

He and his wife, Rene, have three adult children and are grandparents to ten grandchildren.


Ruth Leary



Ruth supports the work of church planters in Europe, the Middle East and Africa. She helps connect church and network leaders in those regions to City to City. 

Born in Richmond, VA to missionary parents, Ruth spent half of her formative years in Kiev, Ukraine. Living in Eastern Europe gave Ruth a passion for connecting with people of different cultures. She loves spending time with the world-changing leaders at City to City. 

Ruth graduated from the University of Virginia where she studied Foreign Affairs and Russian and Eastern European Studies. She lives on the Upper West Side of Manhattan and enjoys spending time outdoors, traveling and a good cup of coffee. 


Walter Wood



Walter Wood's ministry career has taken him through campus ministry with Cru, seminary (M.Div., D.Min.) in Jackson MS, a 12-year stint at Perimeter Church in Atlanta, and founding and senior pastor of North Cincinnati Community Church (NCCC) in Mason, Ohio.

He and his wife Becky planted the church in 1994, and over the 21 years, NCCC grew and was able to plant eight other churches in the Cincinnati area and beyond.  Walter has been working with Redeemer City to City (CTC) as an adjunct field staff during his last three years at North Cincinnati, in several cities in Southern Europe, and now has been taken on by CTC in a full-time capacity.

Walter’s responsibilities are to coach church planters in Europe and to develop partnerships between North American churches and CTC’s target cities.

Walter is married to Rebecca and they have two grown children and three grandchildren.



Latin America


Andres Garza



Andres is an ordained pastor in the National Presbyterian Church in Mexico and an architect with a master’s degree in urban planning. He grew up in Monterrey, Mexico as a Catholic. During the last year of college he was invited by Ruth, who now is his wife, to an evangelistic campaign where he met the Lord.

After working as a city planner for 15 years, God called him to partner with Mission to the World (MTW), helping and encouraging established churches to start and revitalize more churches. In response to the growing church planting movement and the need for better training for leaders and pastors, he decided to attend Reformed Theological Seminary, Charlotte to earn a master’s degree of divinity.

He returned to Monterrey, and after leading MTW’s efforts in Northern Mexico and establishing a Church Planting Movement and the Church Planting Center, in 2015 he received an invitation from Redeemer City to City to ignite a movement of the gospel in the 25 most influential cities in Latin America.

Now, after two years, networks in Mexico City and Monterrey, Mexico; Lima, Peru; Buenos Aires, Argentina; and Santiago de Chile and Viña del Mar, Chile have started new churches, are training leaders, and are developing a curriculum in Spanish for church planters.

His wife, Ruth, is also a city planner. She is developing a ministry for church planters’ wives. The Garzas have two adult daughters, Lissete and Priscila.



New York City


Andrea Booker

Manhattan, NY

Andrea is responsible for implementation of the Incubator, Fellows and the newly launched Lab program for NYC church planters and church planters in training.

A New York City native, born and raised on the Lower East Side, Andrea is currently apart of a flourishing new church plant in Harlem and serves as an active lay leader supporting church operations. She’s excited to see how God continues to weave together the seemingly unexpected into what has always been His purpose.

Before joining Redeemer City to City Andrea was at Mastercard where she held several roles in B2B Marketing. Andrea lives in the Bronx and enjoys gathering and hosting friends and family, exploring the city, and traveling.



Coordinator, NYC Systems & Operations
Manhattan, NY

Denine provides support for the NYC team and creates processes to make things run more smoothly. The best part of her job is getting planters the training they need to help them start Jesus-loving churches that serve their communities.

Denine was a hip hop dance missionary in the Dominican Republic where two seemingly unrelated things occurred: she developed a passion for church planting in urban centers, and began attending Robert Guerrero’s church. After moving back to New York, she reconnected with Robert, began working as his assistant, and helped him start a church. 

A New York City native, Denine now lives in Washington Heights with her husband Robert Blevins. She enjoys mentoring, storytelling podcasts, and, of course, hip hop dancing.


Reyn Cabinte


Facilitator, City Ministry Year
Manhattan, NY

Reyn is the City Ministry Year Facilitator, a steward of non-formal learning design, mentoring, and recruiting for City Ministry Year students.  

Along with his role at City to City, he is also the Senior Pastor of Uptown Community Church in Washington Heights. He planted Uptown in 2008, previously serving Emmanuel Presbyterian Church (Morningside Heights) and as church planting Fellow at Redeemer.  Reyn is a founding board member of Viva Uptown, a church-based collaborative non-profit working for the renewal of northern Manhattan.

Prior to the ministry he worked as a producer at CBS News' 60 Minutes, a writer for WorldVision, and once captain of the men's swim team at Columbia. He has two boys with his wife, Esther.


Cody Dunn


manager, NYC Programs
Manhattan, NY

Cody helps manage and execute CTC’s training programs for leaders in New York City. He counts it a privilege to participate in the renewal of the city by helping leaders flourish in the calling God has given them.

Cody grew up in rural southeastern Virginia and never thought he would call an urban center like New York home. He earned a degree in Mechanical Engineering from Virginia Tech and comes alive when spending time in nature, even if only by taking in the view of the skyline from his fire escape.

Fluent in Spanish, Cody is married to Kelsey and lives in Washington Heights. They are both active in Cru’s Millennials network and enjoy exploring New York’s incredible patchwork of neighborhoods together. 



Robert Elkin

Assistant Director, Training
Brooklyn, NY

Robert Elkin oversees Incubator in NYC, the flagship training program at CTC. His vision is to develop a training ecosystem that helps church planters start new creative expressions of the kingdom of God while remaining happy and healthy. 

Robert has twelve years of church planting experience in NYC including starting, closing, and replanting churches. He knows firsthand both the thrilling breakthroughs and painful challenges involved in urban church planting, and he is excited to steward his story through training and coaching other planters. 

Robert and his wife Sarah live in Williamsburg, Brooklyn with their endlessly curious son and fiercely independent daughter. They love road trips, thrift shops, and long conversations with friends around the dinner table. Together they have learned to anticipate the unfolding story of God, and they live by this motto: Redemption Washes Backwards (Wait For It).


Robert Guerrero


Vice President, NYC

Robert Guerrero works toward catalyzing networks of existing churches in the city.

Born to Dominican parents in New York City, Robert has spent much of his life in both the U.S. and Dominican Republic. He earned a degree in theology from Moody Bible Institute and during his studies was active in the ministry of Lawndale Community Church, Chicago, as well as planting La Villita Community Church. In 1995, Robert and his wife moved into the Colonial City of Santo Domingo where they planted Iglesia Comunitaria Cristiana (ICC) with a focus on justice and compassion for the most under-resourced in the community.

Robert is also the co-founder of the Coordinating Community of Del Camino Network for Integral Mission in Latin America with networks in Costa Rica, Argentina, Chile, Guatemala, Honduras, Nicaragua, Brazil and the Dominican Republic.


MAi Hariu-Powell


Executive Director, The New York Project

Mai oversees the New York Project, a 10-year joint initiative of Redeemer City to City and Redeemer Presbyterian Church to see the body of Christ triple in New York. She also coordinates fundraising specifically for the New York Project while coordinating, designing and teaching trainings on evangelism.
Before she joined City to City, she worked at Redeemer Presbyterian Church to open W83 Ministry Center for the West Side congregation and then to launch the Downtown congregation. She worked on several other projects but her favorite was running the Public Faith ministry year, especially the Questioning Christianity lecture series. 
Even before that, she spearheaded lobbying and communications campaigns for large-scale economic development efforts in NY for several years. She has her Masters in Public Affairs from Princeton and is proud to be from upstate but live in the city.

Learn more about the New York Project.


Cedric C. Johnson


Assistant Director, Training
Brooklyn, NY

Dr. Cedric Johnson recently left a position on the faculty of Wesley Theological Seminary to join City to City’s staff. Before joining Wesley’s faculty, Dr. Johnson worked for over fifteen years in the field of community mental health, as a family therapist, clinical supervisor and clinical director, serving multicultural populations in urban settings.

He is also a church planter, currently working to plant Kinetic Christian Center in Brooklyn. He holds an M.S.W. from Hunter college as well as an M.Div. and a Ph.D. from Princeton Theological Seminary.



Ashley Kerr



Ashley was born and raised in Charlotte, NC and is a proud Tarheel. After working in the performing arts for ten years, she felt a call to dedicate her life to ministry and enrolled in the RTS New York program where she is expected to earn her Master of Arts in Biblical Studies in the fall of 2018.

In her role with City to City, Ashley is responsible for facilitating the development and administration of the newly launched City Ministry Year program. She is also part of the Community Group Team at Redeemer West Side.

Ashley graduated from the University of North Carolina at Chapel Hill and Florida State University with degrees in music. When she has time, Ashley enjoys taking in the many arts events around the city as well as taking in and fostering rescue dogs.


Andrea lopez


Manhattan, NY

Andrea Lopez is responsible for the care of the New York Project’s community of gospel patrons. She helps design the strategy, systems and processes needed to engage partners for this ambitious 10-year plan for the gospel movement in New York.  

Before CTC, she worked on Redeemer Presbyterian Church’s Rise Campaign. She's also worked in event production and advancement for The King’s College and Luis Palau Association.

She chooses purses based on whether it fits the book she’s reading. She also enjoys exploring the city by foot and eating at tasty but cost-efficient restaurants. Burgers and fries have a special place in her heart (and stomach).


Al Santino


Project Manager, Community Engagement
Manhattan, NY

Al Santino was born and raised in New York City and has been serving in community development ministries since 1986.

He has worked for many ministry organizations including Here’s Life New York, the inner city arm of Campus Crusade for Christ, Christian Reformed World Relief Committee and Open Door Fellowship.  He also founded Help House, a residential program for men recovering from substance abuse, homelessness and prison consequences, and Bronx Christian Study Center, which provided a biblical curriculum as well as remedial education for adults.

Along with his role at City to City, Al is also serving the Washington Heights/Inwood community through his role as Director of the Pathways Mentorship Program and Coordinator of Viva Uptown Inc., a recently organized church-based collaborative.

He obtained a Doctor of Ministry from Erskine Theological Seminary in May, 2010.  Al and his wife Haydee have a 16 year old son Lorenzo


Ruben Soto

Director, NYC PRograms
Brooklyn, NY

Ruben comes to us from being the Director of Ministry Relations at Nyack College, where he developed partnerships between the college and area churches. He also spent several years as an active lay leader at Brooklyn Tabernacle.

Ruben is working on his MA in Biblical Studies from Gordon-Conwell Theological Seminary and lives in Bay Ridge, Brooklyn.


Guy Wasko

Assistant Director, Church Planting Catalyst

As a catalyst, Guy helps CTC reach its ambitious church planting goals throughout center city Manhattan by recruiting and assessing new church planters, developing new strategies to raise up and release younger leaders and inspiring existing churches to become generative church planting ecosystems. Basically, Guy’s around to build relationships and mobilize the church toward exponential growth.  

Before moving to New York City in August of 2009 to plant a church (Trinity Grace East Village), he served in small, medium and large churches in both suburban and urban contexts. The variety of ministry settings and roles, paired with his passion to help maximize people and organizations toward their full redemptive potential, makes Guy a great fit for this role.

He has an earned Masters in Theology and a Masters in Organizational Leadership from Regent University, and is currently a Doctoral candidate in Strategic Leadership at Capital Seminary.  He lives in the East Village of Manhattan with his wife Rebecca, their three daughters and a puppy named Wrigley.





David has been involved in helping church plants for over 30 years. He and his wife, Kathleen, moved to New York City in 2003 specifically to plant churches. During that time, David has been a part of pioneering 3 church plants, including his current congregation, Grace, which meets on the Upper West Side and is planting another church in Queens. 

David has been coaching church planters throughout his time in Manhattan. He studied at Reformed Theological Seminary and Fuller Seminary. David also served as a chaplain at Duke University and the University of North Carolina at Chapel Hill at the same time. He has been certified by CoachNet, Gospel Coach and Church Multiplication Ministries. David, his wife and his two daughters live on the Upper West Side of Manhattan. His hobbies include trying to find time, cycling and playing guitar.