Board of Directors

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Diane L. McMahon – President

Ms. McMahon received a Bachelor of Science and Master of Science in Biological Sciences from the University of Houston, Clear Lake.  She is retired from United Space Alliance, NASA where she was an experiment support scientist and payload integration manager. Ms. McMahon is currently an active Master Naturalist and Master Gardener, and participant in the UGRA Volunteer Summer Study.  She is also a member of the Guadalupe-Blanco River Trust board. Previously, Ms. McMahon was elected to two terms on the Headwaters Groundwater Conservation District board and served on the City of Kerrville Parks and Recreation Advisory Board. Ms. McMahon was appointed to the UGRA Board in 2015 and reappointed in 2021.

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Aaron C. Bulkley – Vice-President

Mr. Bulkley of Hunt is owner and operator of Texas Hunt Lodge, Africa Hunt Lodge, and Wildlife Market Taxidermy Studio. As a Member of EO (Entrepreneurs’ Organization), Mr. Bulkley has founded multiple companies since his university days.  Previously, he served as a board member for Rotary Club International, president of Texas Youth Hunt, vice president of Safari Club International - Hill Country Chapter, and as a board member for Trophy Game Records of the World.  Mr. Bulkley attended the University of Texas at Austin where he studied international business. He is married to Joanie Bulkley, and has two young girls, Viola and Bailey. Mr. Bulkley was appointed to the UGRA Board in 2016 and reappointed in 2019.

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Dr. William R. Rector, MD – Secretary

Dr. Rector graduated from Tivy High School in 1960 and from Texas A&M in 1964. He received his MD from University of Texas Medical Branch in Galveston. Dr. Rector did his internship in the Air Force followed by a three-year tour of duty in the Far East during the Vietnam War. Following his years as a flight surgeon, he left the Air Force for a residency in radiology at the University of Colorado where he developed a special interest in ultrasound working with his mentor and friend, Dr. Joseph Holmes, regarded as the “Father of American Ultrasound.” 

Dr. Rector joined the medical staff of Sid Peterson Memorial Hospital in 1980 and later, Peterson Regional Medical Center, where he practiced radiology for 31 years retiring in 2011 but continuing to remain active in the medical and business community. 

Dr. Rector has served on the board of the Kerrville Area Chamber of Commerce, two terms as a KISD trustee and one term on the Kerrville City Council. He currently serves on the Main Street Advisory Board and is currently on the Symphony of the Hills Board.  He is the longest serving member of the Kerr County Historical Commission.  He is Chair of the board organizing the Heart of the Hills Heritage Center to be located soon on the Campus of the Butt-Holdsworth Memorial library in the historic A C Schreiner Home.  He is president of the Historic Downtown Business Alliance and serves on the board of the Kerrville Christmas Lighting Corporation.  Dr. Rector was appointed to the UGRA Board in 2016.

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Maggie Snow – Treasurer

Ms. Snow of Kerrville is the co-owner and appraiser of TexAppraise, Inc. She is a member of the American Society of Farm Managers and Rural Appraisers and the Appraisal Institute. She was the first woman in Texas to receive the Accredited Rural Appraiser designation. In addition, she is an adult leader of Kerr County 4-H Shooting Sports and a member of the Executive Women’s Club. Snow received her Bachelor of Science in agricultural economics from Texas A&M University.  Ms. Snow was appointed to the UGRA Board in 2018.

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Austin Dickson

Mr. Dickson of Kerrville is CEO of the Community Foundation of the Texas Hill Country. The Foundation makes grants to nonprofits and awards scholarships to students throughout the region. A Waco native and TCU graduate, Mr. Dickson holds a Master of Public Policy degree from Georgia Tech. He is a member of the Kerr County Historical Association and the Rotary Club of Kerrville. Mr. Dickson was appointed to the UGRA Board in 2019 and reappointed in 2021.

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Mike Hughes

Mr. Hughes of Ingram is former owner and operator of Broken Arrow Ranch. He is founder, director and past chairman of the Oceaneering International Board of Directors, director and past president of the Exotic Wildlife Association, a board member of the National Ocean Industries Association, director at large of the Marine Technology Society, and a member and past president of the Association of Diving Contractors. He is also a past advisory committee member of the University of Texas Marine Science Institute, and a member of the National American Standard Institute, Undersea Medical Society and Chi Epsilon- Civil Engineering Fraternity. Mr. Hughes received a bachelor's degree from the University of Tennessee. Mr. Hughes was appointed to the UGRA Board in 2011 and reappointed in 2018.

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Blake W. Smith

Mr. Smith of Hunt is an owner and director of Camp La Junta. He is a member of the American Camping Association, former board member of Our Lady of the Hills High School, and past president and member of the Camping Association for Mutual Progress. Mr. Smith was formerly president and member of both Hunt ISD Board of Trustees and Kerrville Public Utility Board. He received a Bachelor of Arts in Biology from Trinity University. Mr. Smith was appointed to the UGRA Board in 2015 and reappointed in 2021.