Grapevine, Texas-headquartered GreenHunter Energy Inc. has appointed Ronald H. Walker as an independent director of the company. Prior to his retirement in 2001, Walker was a senior partner with executive search firm Korn/Ferry International for more than 20 years. His record of government services includes special assistant to the president of the U.S. from 1969 to 1972.
President Nixon appointed Walker the eighth director of the National Park Service, from 1972 to 1975. In this position, he was charged with the preservation and care of the country's 300 national park system areas encompassing 300 million acres of land. Walker previously served as a consultant to the White House personnel office. He has also served as a senior advisor to four presidents and on special diplomatic assignments abroad.