Board of Directors

The ALDEA Board values having Directors who collectively bring a diversity of background, personal experience, expertise and perspectives.

A Diversity of Backgrounds

The ALDEA Board values having Directors who collectively bring a diversity of background, personal experience, expertise and perspectives, so that we can effectively raise funds for our programs in Guatemala, plan for the future, make prudent decisions, manage risk, and take advantage of new opportunities to achieve ALDEA’s overall Mission of promoting integrated development services that improve the well-being of families with limited resources, especially in rural Mayan areas of Guatemala.

current board members

SONYA FULTZ, M.Ed. – President
Sonya is the CEO and Executive Director of Adopt A Class (AAC) Foundation in Cincinnati, Ohio. AAC connects businesses and civic groups with students in economically challenged schools to provide essential employability and career readiness mentoring. She has trained the Ministry of Education in Costa Rica and Trinidad/Tobago in Comprehensive School Conflict Management and has dedicated her career to creating academic opportunities for marginalized communities to access an affordable and effective education. Her interest in Guatemala is rooted in the adoption of her Guatemalan-born son and she has led adoptive families on Return to Guatemala trips since 2005 aiding them in connecting with their children’s birth country.

DEBORAH WALTERS, Ph.D. – Vice-President                                                                                                                                                                      Deb is neuroscientist; retired Provost and Senior Vice President of Unity College; Professor Emeritus at University at Buffalo; and member of the Unity Rotary Club in Maine. She was honored at the United Nations by Rotary International as a Global Woman of Action based on her humanitarian work in Guatemala. She has held many Rotary International leadership positions and is a former board president of Safe Passage. She is the crazy grandmother who kayaked alone from Maine to Guatemala to raise funds and awareness.

WAYNE GILBERT, M.A., J.D., LL.M. – Secretary
Wayne is certified as a specialist in estate planning, trust, and probate law by the State Bar of California Board of Legal Specialization. In 1978 he received a J.D. degree from the UCLA School of Law and an M.A. in Economics from the UCLA Department of Economics. Wayne received an LL.M in Taxation from New York University in 1986. Wayne has taught estate planning and tax related courses at McGeorge School of Law, University of San Francisco School of Law, and Hastings College of the Law, and has been a frequent speaker on estate planning related topics. Wayne has served on ALDEA’s board since 2014 and has led ALDEA tours since 2016.

BRUCE ROBBINS, M.D. – Treasurer
Bruce worked for 36 years as a pathologist in the Scripps Hospital system in San Diego. His work included subspecialty expertise in immunology and leukemia/lymphoma diagnosis as well as multiple administrative roles including Medical Director of the Scripps Mercy Hospital clinical laboratory, and president of a private pathology laboratory business. He attended Stanford University as an undergraduate, and then UC San Diego Medical School. While in medical school, Bruce spent the summer of 1978 studying Spanish in Antigua, Guatemala and tropical medicine in Costa Rica. He returned to Guatemala in the summer of 1979 to volunteer at the Behrhorst Clinic in Chimaltenango. In 2016, he and his wife Elaine participated in the ALDEA Guatemala tour. This experience rekindled his passion and commitment to ALDEA’s mission, and he joined the board in June 2016. Bruce retired from medical practice in 2017, and now has more time for ALDEA and his other passions.

GARY S. ELBOW, Ph.D.
Gary is a geographer with a long-term interest in Latin America. He was a contract employee with USAID (1967-69) and conducted research in Guatemala over several summers, mostly in the 1970s and ‘80s. Gary also conducted research in Costa Rica (1983) and spent 4 summers in Ecuador teaching in a field geography program for students from Organization of American States member countries (1988, ‘90, ‘92 & ‘93). He served for 49 years as a geography professor at Texas Tech University in Lubbock, TX, including 3 years as Associate Dean for the University Honors College and 6 years as Associate Vice Provost with primary responsibility for managing the university’s undergraduate core curriculum. Gary retired at the end of 2009. His interest in ALDEA is a product of a brief acquaintance with Dr. Behrhorst, awareness of his clinic and health programs in Chimaltenango, and a desire to contribute in a small way to improving the lives of Guatemalans.

NARRA COX, Ph.D.
Narra is a professor emerita of Continuing Studies at the University of Wisconsin-Madison where she served as a Professor and Associate Dean of Faculty Affairs in the Division of Continuing Studies. Her area of interest was school and community health and she was the founder and director of the HIV Outreach Project, a partnership with the State of Wisconsin to facilitate training and community planning for HIV prevention and care. Narra became familiar with the work of Dr. Carroll Behrhorst in the 1970’s through the Walks for Development and as a participant in the School for International Training’s program in Guatemala. Many years later she was a participant on a BPD (now ALDEA) Guatemala tour and subsequently served on the board for 7 years. Following her retirement from UW-Madison Narra returned to the board in 2020 to support the important work of ALDEA in reducing chronic childhood malnutrition in rural Guatemala.

MARYPAT ENGLISH, Ph.D.
Marypat has enjoyed an extensive career in the financial services industry and has spent the last 16 years at Wells Fargo as Head of Midwest Institutional Equity Sales. Although a native New Yorker, she has called Chicago her home since 1993. Marypat holds a BS in English from Manhattan College and received her MBA from Boston College. She is Dare to Lead trained and has had a lifelong passion for diversity, equity, and inclusion. Marypat has three children and her son (Luke) is from Mazatenango, Guatemala.

YVONNE K. GATZ, M.S.W.
Yvonne is a retired social work professor of Concordia College, Bronxville, New York. She received her B.S. degree from Valparaiso, Indiana, where she majored in theology, and earned her Master of Social Work degree from Florida State University. She taught social work for Florida State University and the University of North Florida in Jacksonville. She also worked as a clinical social worker for a children’s hospital and a residential treatment center and developed her own private practice, counseling adolescents, children, families and individuals. When living in New York, she worked as a part-time psychotherapist for Lutheran Counseling Services. She has served as co-leader of ALDEA tours and joined the board in 2016.

CARY HILL, M.D.
Cary graduated from UC Davis Medical School in 1983 and completed his Residency in obstetrics and gynecology in 1987. His practice is located at Palo Alto Medical Foundation where he has also held numerus administrative positions. His role in administration started shortly after joining the group in 1990. Currently, he is on the Sutter Health Bay Area Board of Directors and is the Vice President of Capstone Insurance, a medical malpractice insurance company. He has also served on the Palo Alto Foundation Medical Group Board, started a high-risk pregnancy department, and coordinated the incorporation of infertility and gynecological oncology into the group while he was the ob/gyn department chairman.

JONATHAN MAUPIN, Ph.D.
Dr. Maupin is an Associate Professor of Anthropology in the School of Human Evolution and Social Change at Arizona State University. His research focuses on community participation in health and development programs in Guatemala as well as variation and change in health-related beliefs and practices. He has conducted research in Guatemala since 2002 focusing on healthcare reform, community health worker and midwifery training programs, and community health. As a part of his work, he leads a field school on community health and medical anthropology through ASU which focuses on a specific health-related research project each year.

THOMAS A. SHARPE, JR., M.B.A.
Tom is Co-Founder of Onetegrity, LLC, a professional services firm advising thought leaders on bringing innovation to bear on public missions. He retired in June 2017 as the Commissioner of the Federal Acquisition Service, where he led the federal government’s large scale centralized procurement organization. Prior, Tom was a consulting principal with IBM Global Services. He holds an M.B.A. from Marywood University and a B.S. from the University of Scranton. Tom resides in Washington, DC and New York City. He joined the ALDEA board in January 2018.

GORDON STARKEBAUM, M.D.
Gordon graduated from Columbia University Medical School in 1970. He spent three months working with Dr. Behrhorst in the spring of 1970 which left an indelible mark on his approach to the practice of medicine. He was trained as a rheumatologist at the University of Washington and was at the UW-affiliated VA Puget Sound Health Care System for over 35 years where he was Chief of the Arthritis Section, then Chief of Staff. He is now mostly retired. He was appointed Emeritus Professor of Medicine at the University of Washington and Masters of the American College of Rheumatology.

C.J. SULTZ, M.B.A.
C.J. retired after working for 25 years in brand management, customer marketing, and business insights, for such companies as Unilever, Kellogg’s, Coca-Cola and McDonald’s. When she’s not otherwise occupied with non-profit endeavors, she runs her own marketing firm, Glen Vista Consulting. She received her M.B.A. from the University of Michigan and a B.S. in Marketing and Sociology from Indiana University, and resides in Glenview, Illinois. Her interest in ALDEA stems from her board participation with Feed the Dream, a Chicago area-based non-profit which provided funding to ALDEA before dissolving in 2018. C.J. joined the ALDEA board in January 2019 and is also the board chair fro Heartland Animal Shelter.

LILYANNA THOMPSON, M.P.H.                                                                                                                                                                                                   
Lily holds a Master of Public Health from the Johns Hopkins University Bloomberg School of Public Health with a concentration in Tropical Medicine. She works in global market development for Thermo Fisher Scientific, helping to democratize access to precision medicine
technologies. Visiting the rural Guatemalan highlands and the Behrhorst Clinic as an Arizona State University undergraduate researcher, she
became passionate about health and development in Guatemala and has since worked on several projects addressing health and well-being in indigenous Maya communities. Lily served as an inaugural member of the ALDEA Young Professionals Council for 1.5 years before joining the Board of Directors in 2022.

MARTHA TRESSLER, M.M.                                                                                                                                                                                                          Martha is an accountant (CPA) with a Master of Management from Northwestern University. She moved to the United Kingdom in 1980, and worked in the accounting and corporate finance fields until starting her own financial services consultancy business in 2000. Her first contact with what is now ALDEA and ABPD was through the Freedom From Hunger Foundation Walks for Development (1969-1972) when the Behrhorst Clinic was one of the funding beneficiaries, and she has followed the development of the organization closely over the years. Now retired, she has more time to devote to volunteer activities and is delighted to serve on the board and support the valuable work ALDEA and ABPD are doing.

PAMELA E. WINTHROP
Pamela is a seasoned fundraiser with 23 years experience working in independent schools in the United States and Denmark. Pam currently serves as the Director of Institutional Advancement at Chinese American International School, in San Francisco, CA. As a fundraising consultant with Graham-Pelton, Pam partners with institutional leaders and boards of trustees to fulfill their fundraising goals. She takes great pleasure in helping institutions build fundraising capacity, apply best practices, assess programmatic effectiveness, lead and interpret the results of feasibility studies, and coach leaders and volunteers through the various phases of capital campaigns to achieve success. Pam received her bachelor’s degree from Mount Holyoke College. Her love of Guatemala was sparked 16 years ago, when she adopted her Guatemalan-born son. She previously served on the board of Mayan Families. Pam joined the ALDEA board in January 2019.

BARBARA YOST, M.S.
Barbara’s 24-year military career included multiple command and supervisory logistics support involving local nationals, U.S. civilians, multinational and U.S. military personnel, and West Point’s Corps of Cadets. Prior to the military, Barbara served in the Peace Corps in rural Costa Rica and taught high school and college physical education and health in the U.S. She has degrees from Valparaiso University, University of Northern Colorado, and Industrial College of the Armed Forces. Barbara’s 2006 and 2009 ALDEA tours compelled her to greater involvement. She began serving on the ALDEA board in 2010 and led ALDEA tours from 2012 to 2017.