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Board of Directors

Bill WilkeningBill Wilkening, Board President

Bill earned a B.S. in Chemical Engineering from the Colorado School of Mines, plus a M.S. in Reliability Engineering from the University of Arizona, and worked for 35 years with several companies. Tucson is a special place for his family, as his wife can trace her roots back six generations in the Tucson area. With WMG, Bill sees an opportunity to help rebuild Tucson as a place where you know and help your neighbor. He volunteers teaching middle school students about engineering by having them design water harvesting systems and enjoys backpacking, swimming and cycling.

Jennifer MillsJennifer Mills, Board Treasurer

Jennifer Mills is a native Arizonan who has a great appreciation for the vibrant and diverse place where she grew up. Working as a Financial Advisor at Wells Fargo Advisors, LLC, Member SIPC, she has been assisting clients with their financial and investment decisions since 1994. Jennifer was introduced to Watershed Management Group by a like minded client and friend, Marguerite Fisher. Although she is still learning about the history and vision of WMG she is excited to be involved in an organization that embodies so many of the values that are near and dear to her heart. In her spare time, she is an enthusiastic rather than accomplished gardener who also enjoys hiking, camping, yoga, walks with her two Jack Russell Terriers, and watching sunsets with friends and family.

Georgia EhlersGeorgia Ehlers, Board Secretary

Georgia is Director of Fellowships and Community Engagement at The University of Arizona Graduate College. She manages the UA Peace Corps Coverdell Fellows and UA Wildcat Corps programs that have placed 300 students and grads in non-profit service across Arizona. She has a MS degree in Community and Regional Planning from the University of Texas at Austin, and was a city planner and consultant in Columbus, Ohio for 18 years before moving to Tucson in 1992. She is interested in non-profit management, community development and sustainability issues.

Andrea FingerAndrea Finger, Board Member

Andrea is a former investment analyst and current Adjunct Lecturer at the Eller College of Management at the University of Arizona, instilling a love of financial statements in current MBA candidates. She holds an MBA from the University of Chicago in Finance. Since moving to Tucson from the east coast, Andrea has volunteered her time consulting with various local non-profits on optimizing their financial strategy to achieve their growth goals and mission.


Mark FlemingMark Fleming, Board Member

Mark has had a long zoo career as a senior level manager who has overseen staff and contractors in the installation of new exhibits. He has had total responsibility for the landscape of three major US Zoos. At the Phoenix Zoo, Mark became a leader in their design process. He also acted as an intermediary between internal design teams, staff, volunteers, administration and outside contractors. Recently Mark expanded his knowledge of design and planning by completing a master’s degree in landscape architecture at the University of Arizona. During that same period, he worked part-time for the Drachman Institute and completed a graduate certificate in geographic information systems. Mark is driven by a need for meaningful experiences, a passion for his chosen professions, and a strong desire to keep learning.

Margo GarciaMargo Garcia, Board Member

Margot attended UC Berkeley, University of New Mexico and earned a MSc in Botany in 1965 at UW Madison. She attended the U of A while being an at-home Mom to two children, volunteering in a variety of organizations, and was elected to the Tucson City Council in 1975. She earned a PhD in Watershed Management in 1979. She worked for the Coronado National Forest, and the San Bernardino National Forest, taught at ASU in the Urban Planning and Landscape Architecture Department, and was chair of the Department of Urban Studies and Planning at Virginia Commonwealth University. In Tucson, she has been a member of the Environmental Services Advisory Committee, Transit Task Force, and a leader in the Broadway Coalition. Margot is delighted to return to her first love, watersheds and their importance in clean and adequate water supplies.

Jennifer PsillasJennifer Psillas, Board Member

Jennifer is a GIS Project Manager for the City of Tucson Parks and Recreation Department and an Adjunct Lecturer for the School of Geography and Development at the University of Arizona. She has a background in physical sciences and natural resources, with Master’s degrees in Watershed Management and GIS, and holds WMG’s certification in Water Harvesting Design. A Tucsonan since 1998, Jennifer enjoys road trips and camping, dabbling in various crafts and dance styles, and glomming onto any dog that will let her pet it because she loves dogs but doesn’t have one of her own.

Gordon YarringtonGordon Yarrington, Board Member


If you are interested in actively serving on the Board of Directors please contact us.

We are seeking technical advisers, enthusiastic fundraisers, community organizers, or most importantly motivated individuals committed to our mission.