Staff Bios - Leadership

Buddy D. Philpot
Buddy D. Philpot is the foundation’s executive director overseeing all foundation operations, grant making, research and evaluation, and communications. Prior to joining the foundation, Buddy spent more than 20 years in community banking, joining the Walton family owned Arvest Bank Group in 1987. He served for more than 10 years as president and CEO of the Springdale, Arkansas, Arvest bank. He joined The Walton Family Foundation as executive director in 2001. Buddy holds banking degrees from the Sam M. Walton College of Business at the University of Arkansas and the Southwestern Graduate School of Banking at Southern Methodist University.


Marc Sternberg
Marc Sternberg is director of the foundation’s Systemic K-12 Education Reform Focus Area. He leads the foundation’s initiatives to improve K-12 education for all of our nation’s children by empowering parents with quality options.  Before joining the foundation, Marc served as the senior deputy chancellor at the New York City Department of Education, where he directed the citywide portfolio planning efforts including new school development and placement, the school phase-out process, and the enrollment process for students Pre-K-12.  He also served as senior advisor to the chancellor and the mayor’s office on K-12 policy and strategy.


Prior to his service as deputy chancellor, Marc served as founder and principal of the Bronx Lab School, an unscreened high school that quadrupled the graduation rate of Evander Childs High School, the school Bronx Lab replaced in 2004. After earning a B.A. from Princeton University in 1995, Marc served as a Teach For America corps member in the South Bronx. He then earned a joint MBA and Masters in Education from Harvard University.  Marc was selected as a 2009-2010 White House Fellow, during which time he worked in the office of U.S. Department of Education Secretary Arne Duncan supporting the Race to the Top initiative.


Margaret is currently serving as interim director for the Environment Focus Area.
With more than 23 years of conservation expertise, she is deputy director for the Environment Focus Area overseeing the foundation's freshwater conservation initiative. Prior to joining the foundation, Margaret directed the Lensfest Ocean Program at The Pew Charitable Trusts where she supported policy-relevant scientific research related to sustainable fisheries. For more than a decade Margaret worked at American Rivers, and she has also worked on international environmental issues and represented corporate environmental clients in a law practice. She received a B.A. from Wesleyan University and a J.D. from Harvard Law School.


Rob Brothers
As director of the Home Region Focus Area, Rob Brothers is responsible for work with grantees focused on statewide K-12 education reform in Arkansas, and those focused on quality of life initiatives in northwest Arkansas and the Delta Region of Arkansas and Mississippi. Rob previously spent 37 years as a commercial banker in Arkansas and Missouri, including a term as the chairman of the Arkansas Bankers Association. He holds a B.S.B.A. in economics and finance from Missouri Southern State University.


Naccaman Williams, Ed.D
Naccaman Williams is director of the foundation’s special initiatives, which includes grants directed by individual members of the Walton family. A former junior and senior high school mathematics teacher, Naccaman has served in several higher education roles, including director of the P.K. Yonge Developmental Research School at the University of Florida, and assistant dean and director of minority education services in the College of Education at the University of Arkansas. He served seven years on the Arkansas State Board of Education, including two years as chairman. He also served a four-year term on the Southern Regional Education Board. Naccaman holds a bachelor’s and master’s degree from Ouachita Baptist University and a doctorate in education administration from the University of Arkansas.


Marc Holley, Ph.D.
As evaluation unit director, Marc Holley is responsible for ensuring that the foundation staff and board of directors are provided with accurate, timely research and analysis to support strategic decision-making. He was previously a researcher at the University of Arkansas in the Office for Education Policy. In addition to publishing peer-reviewed research, conducting program evaluations, and authoring a book on teacher quality, he has worked with the What Works Clearinghouse. He was also a teacher, school administrator, and Peace Corps volunteer. Marc holds a Ph.D. in public policy from the University of Arkansas, a M.Ed. from the University of Georgia, and a B.A. from Harvard University.


Bob Smith
As the director of accounting and operations, Bob Smith provides accounting and finance support as well as the operational support required to assist the focus area teams with execution of the foundation’s strategic plans and initiatives. Prior to joining the foundation, Bob served as CFO and director of accounting of the automotive division of a family-owned company and worked in both the Little Rock and St. Louis offices of PricewaterhouseCoopers. He is a CPA and holds a B.S.B.A. from Missouri State University.


Daphne Moore
As communications director, Daphne Davis Moore oversees all internal and external communications for the foundation including institutional foundation communications as well as working with the Systemic K-12 Education Reform and Environment Focus Area teams to support and advance foundation grant making strategies. Prior to joining the foundation, Daphne spent 13 years working in the corporate affairs division of Walmart holding positions in public affairs, government relations and corporate communications. Before Walmart, she spent five years as a newspaper reporter. Daphne holds a B.A. in English and mass communications from Ouachita Baptist University.


Staff Bios - Alphabetical