My City at Peace Team


Reverend Jeffrey Brown

Rev. Brown, a co-founder of My City at Peace, is an Associate Pastor at Twelfth Baptist Church. He is Co-Chair of Mothers for Justice and Equality, Co-Chair of the Mayor's Interfaith Task Force and member of the Social Justice Task Force for the Boston Police Department. He's the recipient of the 1016 Spirit of the Hill Alumni Award at Andover Newton Theological School and the 2015 Community Hero Award, Community Resources for Justice (CRJ)

Rev. Brown is a regular keynote speaker and has been featured in dozens of media articles. His TED talk has been viewed nearly 1 Million times. To book Rev. Brown for speaking engagements through the Lavin Agency, click here

Geoff Nesnow

Geoff Nesnow, a co-founder of My City at Peace, is an entrepreneur, advisor and consultant. He has built or helped build many products and businesses. He is part-time Faculty at Hult International Business School. Geoff is passionate about product and design.


Thomas Sullivan, a co-founder of My City at Peace, has spent 20 years as a consultant, facilitator, coach and lecturer on designing, leading and implementing personal and organization change efforts in distinct settings across the globe.  In addition to his membership and consulting association with SoL,Thomas currently holds the position of Discipline Lead for Leadership Development with Hult International Business School where he teaches Leadership Skills for MBA students.

Thomas has a broad base of experience in the design and delivery implementation of large-scale leadership development and coaching efforts for international organizations and global companies, including, DISH Networks, Aspentech, Merrimack Pharmaceuticals, BP, Pemex, Cemex, Biogen, the US Forest Service and the American Cancer Society.  In the past six years, Thomas has facilitated leadership development programs and coached teams and managers at all levels of leadership (Emerging Leader Programs to Director Level Programs) with the World Bank, the International Monetary Fund (IMF), the International Finance Corporation (IFC) and the Inter-American Development Bank (IDB).

Cliff Bolster, Ph.D.

In twenty years of consulting and training, Dr. Bolster has consulted with client firms of all sizes and in many industries including pharmaceuticals, consumer products, petrochemicals, high-technology manufacturing and consulting services. His professional experience covers all human resources disciplines including the unique combination of organization development, leadership development, training and industrial relations.

Dr. Bolster’s work is geared toward helping clients develop the norms, structures and skills which foster leadership and learning.  He has designed and led workshops in personal and organizational change, interpersonal skills, negotiations and analytical skills. His practice involves working with clients to accelerate team learning and empower individuals.  Dr. Bolster’s current interests include helping individuals and teams "learn how to learn", peer and executive coaching, employee-driven assessment and development and acting with courage in the workplace.

Dr. Bolster completed his undergraduate work at Tufts University and Springfield College; he earned his graduate degree from Cornell University and his Ph.D. at Case Western Reserve University.


Yolanda Hegngi is committed to the growth and development of leaders, especially in global organizations. Currently supporting leaders in Europe, Africa and the Americas, she worked in the World Bank Group for over eleven years where she headed learning and leadership development at the International Finance Corporation (IFC), headed an Instructional Design Team at the World Bank Institute and before that in academia.

The leadership development programs that she launched and managed at IFC where described as Best-in-Class by McKinsey in 2009. She was part of a team that published an article with Peter Senge’s Reflections Journal about the International Finance Corporation (IFC) nine year history of change entitled: Organizational Learning and IFC’s Mission Impossible. She recently published a book about her years of growing up in Cameroon, Africa entitled: Treasures in Darkness. This book is available in commercial markets.