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Colleen McKenna serves as executive director of the AJA Foundation. She is a strategic and innovative marketing professional with more than 20 years of diverse experience spanning the tech and non-profit sectors. She is a skilled leader with a proven track record of designing and implementing integrated marketing programs and global public relations strategies to engage consumers.




Gid Carr is a Brit living in Zambia for more than 20 years. Gid runs Makolekole Drilling with her husband Adrian. At heart the Carrs are conservationists. It is an immense privilege to live in the Luangwa
Valley and they are both thankful to be able to contribute to the preservation of this unique wilderness and play their part in bringing clean, safe water to the residents of the Valley.

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Board Member

Emily Grigg has a B.S. in Public Health and a M.A. in Communication and has worked as a health coach, in business operations at a nonprofit hospital, and now with healthcare startups in the technology industry. Her passion for travel and experiencing different cultures led her to Africa, and her trips there have impacted her profoundly. She truly believes every person deserves the chance to live a healthy, productive life and is excited to partner with the mission of Makolekole to help make that possible.



Board Member

Jessica Gamble is a registered nurse originally from Appalachia residing in Las Vegas, Nevada with her family.  Devoted to helping others, she joined Makolekole after an inspiring trip to Zambia where she witnessed firsthand the need for clean water in local villages.  In her free time she enjoys costume making, crossword puzzles and hiking with her 3 dogs.


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Board Member

Oliver Freund is a marketing and business development professional specializing in the health care non-profit sector. After graduating Syracuse University, Oliver earned his MBA at Pepperdine University and transitioned to the non-profit sector where he could pursue his passion for supporting organizations that are working to improve patient outcomes. Oliver currently serves as Director of Corporate Development for the Prostate Cancer Foundation, working on key initiatives and corporate partnerships to accelerate research to cure the disease.



Board Member

Zazie Huml is a student at Harvard University pursuing a degree in Global Health and Health Policy. With an unwavering passion for health equity, aid policy, and fighting global structures of extraction, Zazie is currently working for the Center for Effective Aid Policy and is the Global Health Lead for Harvard Effective Altruism. In their free time, Zazie can be found exploring the outdoors, jamming out to Pink Floyd, or whipping up something delicious in the kitchen. In a former life, Zazie raced on the World Cup, representing the Czech Republic in Alpine skiing.

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