David and Janet Preston

David Preston, M.D., is a graduate of Harvard Medical School and has practiced general internal medicine in Winslow, Maine for 15 years. From January to May of 2002, he volunteered to work and teach at Mbingo Baptist Hospital in Cameroon. Janet Preston has a Master of Science degree in Mathematics from Northeastern University and has taught math at various schools and colleges. While in Africa, she home-schooled their two children, Beth and Richard, ages 10 and 5 at the time, and tutored some of the local children.

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