Group of GirlTREKkers jumping simultaneously

About Us

Our Team

GirlTREK is structured to deliver social impact through service and volunteerism.

Deeply inspired by the Civil Rights Movement, our operational structure uses three key levers: a highly-trained and incredibly talented volunteer corps of local volunteers, a distinguished board of directors, and a small and smart central leadership team. Our national leadership team includes national staff and the board of directors.


Tanya Morgan Dixon, M.Ed

Co-Founder & Chief Executive Officer

Morgan leads The Street Team at GirlTREK and leads the overall strategy for the organization and manages the senior leadership team. She develops partnerships, policy, culture, and programs. As a co-founder Morgan also serves as a spokesperson and fundraiser. Prior to GirlTREK Morgan served on the frontlines of education reform where she served as Director of New School Development and led the start-up of five public schools in collaboration with the NYC Department of Education with support from The Gates Foundation. With Co-Founder Vanessa Garrison, Morgan was named among the top 1% of social innovators in the world with fellowships from Harvard, Ashoka, Echoing Green and the Aspen Institute. They have two viral TED talks and are the co-hosts of Black-History Bootcamp, GirlTREK’s award-wining podcast. Morgan studied Political Science and American Studies at University of Southern California and earned a Master of Education in Public Policy, Admiration and Leadership at Seton Hall.

Vanessa Garrison

Co-Founder & Chief Growth Officer

Vanessa leads The Storytelling Team at GirlTREK where she builds brand, marketing and communications strategy, forges corporate partnerships and produces products and brandpromoting events to grow membership, generate revenue and inspire behavior change. As a co-founder she also serves as a spokesperson and fundraiser. Prior to GirlTREK, Vanessa led digital media at Turner Broadcasting for some of the world’s most recognizable brands including CNN, TNT and Sports Illustrated. The Co-Founders have been featured on The Today Show, CNN, in The Washington Post, The New York Times and named a “Health Hero” by Essence Magazine. Vanessa also spent time working to serve formally incarcerated women with Our Place, DC and serves on the board of The Essie Justice Group. She also sits on the board of Rails to Trails. Vanessa studied World Arts and Culture at UCLA and was a social innovation fellow at Harvard University

Carla E. Harris

VP of Member Care

Carla joined the GirlTREK national team in 2017 as National Director of Volunteer Support and now serves as our VP of Member Care where she ensures, as the largest and most inspiring movement for Black women’s health, that GirlTREK is caring for and providing world-class service to our awesome staff, valued members, dedicated volunteers, community, allies, partners, and friends.

Before joining our team, she served in an inspiring volunteer role for 2 years as GirlTREK’s City Captain in Atlanta where she inspired a state-wide takeover and led the growth of the entire state of Georgia.

Carla brings with her over 25 years of customer service experience. Her front-line experience as a committed volunteer, work as Sony’s Customer Service Manager, and serving on an elite leadership team managing, supporting, and providing specialized care to Avon Products Global Million Dollar sales representatives has equipped her with the highest level of customer excellence, care, and customer service experience that is needed in this role to elevate our org-wide culture as a leader in community care and customer service.

In her role, she develops and consults with other members of the leadership team to build and implement GirlTREK’s org-wide care strategy and manages all aspects of community care, and support.

Carla manages a beautiful and brilliant team of regional and state coaches whose role is to support local leaders across the nation in our quest to take over “1000” of the Blackest neighborhoods across the nation. She is responsible for the overall performance of our regional and state coaching staff and the processes necessary to achieve the highest levels of success.

Carla adores her 4 adult children and loves traveling, walking, cooking, dancing, painting, crafting, and gardening. She is from Cleveland, Ohio but resides in Atlanta, Georgia with her husband of over 36 years.

Her GirlTREK superhero name is “Cosmic Carla,” and her superpower is being a thoughtful and caring leader.

Chyna Johnson

Director of Impact and Innovation

Chyna-Lloyd Nicole Johnson serves as Director of Data Management at GirlTREK. She joined GirlTREK in 2017 as the 2017 Summer Fellow while completing her graduate degree at Tulane School of Public Health and Tropical Medicine. In her role as a summer fellow, Chyna worked on the planning and execution of GirlTREK’s annual national church walking challenge PrayerTrek.

Today, she is responsible for the overall management of GirlTREK internal systems, information management, and administrative program support that supports an effective and high-functioning national staff.

Chyna is originally from Columbus, Ohio. She received her Bachelors of Arts in Chemistry and African & African American Studies from Berea College in Berea, Kentucky and earned her Master of Public Health from Tulane School of Public Health and Tropical Medicine. She now resides in the Atlanta area.

Hailey Darby

Director Of Program & Community Partnerships

Hailey joins the GirlTREK national team as the National Field Director and West Coast Regional Coach. With a passion for working with the younger generation, Hailey uses her faith in Jesus to be a guiding force of justice for Black women and girls and looks forward to building GirlTREK’s presence across the West Coast and caring for our GirlTREK members across the nation. Since joining GirlTREK as a volunteer in 2016 with her mom and two sisters, Hailey has truly experienced what happens when Black women walk. Through her volunteer work with GirlTREK, Hailey has climbed mountains, both literally and figuratively, towards her own healing. Women being transformed, families being renewed, and communities being ignited is what she deeply desires for all black women to experience.

Hailey currently resides in Houston, Texas, but her Southwest Louisiana roots follow her wherever she goes. Hailey is most joyful when spending time with her sisters and taking walks along Louisiana’s country roads.

Tanvi Girotra

VP Of People Power

Deondra Wilkins

Lead Artist and Art Director

Deondra Wilkins, MA, is a registered Art Therapist and Artist located in Virginia. Prior to her current position as the Lead Artist and Art Director for GirlTREK, Deondra worked as a full-time Art Therapist at a military installation. In her own art practice, Deondra uses digital drawing, painting, and drawing materials that express her experience as a Black woman.

Kallima Clarke

Chief Financial Officer & Chief Operating Officer

Kallima leads The Sustainability Team at GirlTREK and leads finance and operations. In finance, Kallima supervises accounting, controllership, financial planning and analysis, audit, and treasury. In operations, Kallima leads impact management, compliance, human resources, internal systems, and technology. Kallima works with the growth team to support new ventures with business planning.

Prior to GirlTREK, Kallima spent 15 years leading finance and operations at Fortune 500 companies including, GE, IBM, and ESPN, where she led the Monday Night Football account.

In 2019, Kallima transitioned to Strategy and Consulting roles at Accenture, one of the world’s largest IT Services & Consulting firms. It was here she was able to leverage her extensive financial planning & analysis experience to focus on bold, large-scale finance transformations at some of the largest fortune 100 companies in the world.

Kallima holds a Bachelors of Science in Accounting & Finance from Syracuse University Martin J. Whitman’s School of Management and an MBA in Finance from the University of Connecticut

Siobhan Ollivierre

Special ASST. To Ceo

Siobhan’s 15 years of experience in Human resources creating, updating, and applying all HR policies and company guidelines while leading the day-to-day HR support focusing on employee relations, investigations, training, and coaching along with her 6 years of experience as a dedicated GirlTREK organizer in Harlem, New York supporting the movement as a volunteer has uniquely set her apart to serve in an inspiring dual role on the GirlTREK National Team.

In her role as the Executive Assistant to the CEO, Siobhan manages the day-to-day partner/client/colleague relations at GirlTREK. She efficiently manages inquiries and offers support where needed to ensure smooth and efficient operations for the office of the CEO.

In her role as the MidAtlantic Regional Coach for Delaware, Maryland, Washington DC, and Virginia, she skillfully manages a team of leaders who serve as state coaches across her region which includes the selection, onboarding, budgeting, time management, organizing walks in strategic areas and building local partnerships just to name a few.

In addition to her love of hosting training treks, give back laps and justice treks, she enjoys hiking, walking, reading, studying history and traveling.Siobhan currently resides in Baltimore, Maryland and is a MPA graduate of Brigham Young University and received her BS in Sociology.

Tyreen Taylor

Executive Assistant To The Chief Growth Officer

Monica Rucker

Community Care Specialist

Monica Rucker joins GirlTREK Member Care as Community Care Specialist, where she provides care rooted in love to staff and community members. For the 2022 GirlTREK season, Monica served as the South Regional Impact Coach guiding State Coaches in AL, GA, LA and MS. She joined the movement in 2012 as a Solo-Trekker, when she scrolled by a Facebook page named GirlTREK: Healthy Black Women and Girls, and its content was all about affirming her worth, her existence and beauty just as she was and is in this world. Walking as self-care had become a major force for her healing. This led to her devotion in the honorable work as a Volunteer Organizer, Neighborhood Captain, Hike and Walk Leader, in and throughout her local neighborhood, the Atlanta metropolitan area and beyond.

She comes with over 30 years of combined service as a volunteer in various, local city, county, school and community recreational programs and services, a variety of positions in the University of Georgia Collegiate System and Georgia State Government sector, from Career and Program Development, Executive Administration and Support, to HR, Payroll, Information Technology, Systems Administration and Training. She earned her Associate of Arts in Elementary Education and Music from Atlanta Metropolitan College, Georgia Licensed and Honor’s Diploma in Cosmetology & Barbering from Atlanta Technical College and received her Bachelor of Science in Computer Information Systems from Saint Leo University – Atlanta Campus.

Her volunteerism, community service, unique gift in the acceptance of people where they are, and entrepreneurial aspiration spans over her lifetime primarily from growing up in a strong, tight-knit family, school and church community. The wide blend of her training, skills, and practice seasoned with her life’s toughest challenges, has now elevated her to a place of unbelievable triumph – still unfolding into resilience multiplied.

Monica was born and raised in Southwest Atlanta and now lives in rural Georgia on family land. She is always learning as lifelong student, but her soul lights up most when she is hiking, forest bathing, dancing, singing, serving and coaching others to visualize their potential and realize their natural gifts for the best version of themselves, as a divine extension of God.

Morgan E. Dixon

Director Of Business Operations

Also known as ‘Rev. Morgan’, ‘MD’ joins the GirlTREK national team as the Director of Business Operations. After over two decades in Church Administration, MD brings attention to detail fueled by a passion for excellence, and commitment to the Black community. Since joining GirlTREK in 2012 as a way to personally reconnect to her self-care, MD has worn many hats leading winning church teams and inspiring many to join the movement and prioritize their own health. She has witnessed women’s lives be empowered and transformed simply by walking.

She received her Bachelor of Arts in Music Education from Morris Brown College, a Master of Arts, in Entertainment & Media Management from Columbia College Chicago, and a Master of Divinity from McCormick Theological Seminary.

She is an active member of Delta Sigma Theta Sorority, Inc.

MD is a Midwesterner and resides in Chicagoland. She is an avid music lover, foodie, sports fan, and sunshine seeker!

Cynthia Thompson

National Field Director - Churches

Cynthia Thompson is the National Field Director, with a special emphasis in Black Churches. Cynthia has been advocating, championing, organizing, and serving Black women and girls since 2013 with GirlTREK.

Cynthia is a member of Greater Bethlehem Temple Apostolic Faith Church of Jackson, MS, where her pastor is Bishop Robert N. Fortson, Sr. She is a finance coach and coordinator for her church’s Finance Ministry. She is also the ministry leader of the “Fitness for His Glory” Ministry, the church’s Fitness Ministry. Cynthia is also a community organizer and activist in Jackson, Mississippi, and has served on the Jackson Public School Board as a Trustee Board Member since October 2020; and she has worked with various School’s PTSAs & Booster Clubs. Cynthia is happily married to Elder Emon Thompson, Sr.; they have been married since 1992 and are the proud parents of 7 children and two grandchildren (5 daughters, two sons, a daughter in love, and two granddaughters). She currently serves with her husband in several Neighborhood & Homeowner Associations and ministry at their church with the media, finance, and fitness ministries.

Cynthia is a graduate of Jackson State University with a BS in Psychology. Her work history, over the years, has included working as a Children & Youth Behavior Specialist, Child Protection Social Worker, Adult Protection Worker, Assistant Communication Director, and Administrative Office Assistant.

Cynthia wears many hats and finds joy and fulfillment in them all. One thing she is most proud of is that she is an active trekker and the transformation trekking has made in her life personally and her family’s lives! She uses trekking as meditation, prayer, and inner reflection time; it is her fellowship and inspiration time and time of balancing, healing, and renewing! She treks daily, she treks to live, and live life more abundantly!!! She is excited about empowering others to have this same success in expanding the joy that grows for each woman who develops the habit of walking as part of their self-care.

Marcie Thomas

Director Of Digital Engagement

Marcie L. Thomas is the Director of Digital Engagement at GirlTREK, where she manages our social media spaces and supports the Storytelling Team. Before joining our team, she worked in the automotive, food packaging, and insurance industries. She continues to serve as the founder and leader of Brown Girl Collective, a digital space for Black women.

A long-time Trekker, Marcie’s first official role was as the City Captain for Savannah, GA. She has also been a Neighborhood Captain, Crew Leader, Joy Brigade volunteer at the Stress Protest, and most recently, Special Impact Coach for her sorority, Sigma Gamma Rho.

Originally from Cleveland, Ohio, Marcie spent seven years in the United States Air Force. While in the military, she earned a BBA in Marketing from Campbell University and a Master’s in Management and Human Resources Development from Webster University. She also has a Master’s Degree in Interactive Marketing from Walsh College.

When she’s not serving the women of GirlTREK, Marcie spends her time volunteering across the Atlanta metro area, reading, painting, creating playlists, attending concerts, tending to her plant babies, visiting museums, or planning new adventures.

Board of Directors

Tulaine Montgomery

Board Chair

Tulaine Montgomery is an accomplished social entrepreneur, educator, community organizer and writer. She has played central leadership roles in the launch and expansion of several schools and non-profit organizations domestically and internationally. Tulaine is currently a Managing Partner at New Profit Inc. a national venture philanthropy fund that provides growth capital grants and strategic support to social entrepreneurs and their organizations.

US Surgeon General Regina Benjamin

Board Member

Dr. Benjamin served as the 18th Surgeon General of the United States. She is currently the Chair of Public Health Sciences at Xavier University. She is a recipient of the MacArthur Genius Award, NAACP Image Award, Kellogg National Fellowship, Nelson Mandela Award for Health and Human Rights, Rockefeller Next Generation Leader Award and has served on the boards of Robert Wood Johnson Foundation, Kaiser Family Foundation, and Morehouse School.

Dr. Gary Bennett

Board Member

Dr. Bennett is a professor at Duke University and directs Duke’s Global Digital Health Science Center and Obesity Prevention Program – where he designs, tests, and disseminates industry-leading obesity treatments for the primary care setting and digital health. He has authored more than 100 papers on the social determinants of obesity & the effectiveness of intervention strategies.

Chaula Gupta

Board Member

Chaula is VP of Program Investments at The Chicago Public Education Fund. She was founding Managing Director of Social Entrepreneurship & Innovation Initiative at Teach For America; launched a new Social Innovation Award for early-stage seed investments, created design-thinking trainings for educators, and coached alumni entrepreneurs to raise more than $10 million collectively to launch new social ventures.

Rita Johnson Greene

Board Member

Rita Johnson-Greene leads the US Commercial Operations team at Spark Therapeutics. She is a successful business leader with 15 years of progressive finance, resource allocation, sales and strategic business planning experience with several world class organizations.

Rita began her career in strategic consulting within Accenture ‘s pharmaceutical practice and developed business cases and financial models for new business ventures. She went on to manage the finances of AstraZeneca’s six billion dollar Nexium brand and served as a member of the Commercial Operations Leadership team.

Rita earned her MBA in Finance and Strategic Management from The Wharton School, University of Pennsylvania. Rita acquired her undergraduate degree in Electrical Computer engineering from Drexel University, where she met her husband of 14 years. They live in Drexel Hill, PA with their two daughters, Leah and Maya.

Qiana Conley

Board Member

Qiana began her career in music in 1999 at Epic Records in Promotions/A&R while contributing to album projects by Michael Jackson, Jennifer Lopez and B2K. In 2011, Qiana founded Cue the Creatives where she began Music Supervising on projects such as Nickelodeon’s How To Rock, Lifetime’s holiday feature Seasons of Love starring Taraji P. Henson, Gladys Knight & Method Man. Currently, Qiana is producing/directing “The Untitled TLC Documentary,” which follows the journey back to the music for the iconic pop girl group, after a 20-year lapse, as they take on the challenges of making their final album.

Serita Cox

Board Member

Serita is the Co-Founder & Chief Executive Officer of iFoster – where she brings her personal experience in foster care and her executive-level management experience leading and consulting both Silicon Valley Fortune 500 companies and organizations in the non-profit sector. Before launching iFoster, Serita provided strategic counsel to some of the largest philanthropic foundations and non-profit services for at-risk youth as a management consultant with the Bridgespan Group. Serita has been recognized as a White House Office of Social Innovation Citizen Innovator, an Echoing Green Fellow, and an American Leader of Change.