David was born in Gainesville, Texas in 1942. Served in the U.S. Navy and attended Cooke County Junior College and the University of Texas in Arlington. Studied sculpture with Octavio Medellin from 1967—1979. Assisted Octavio Medellin on several large-scale commissions between 1975—1980. In March 1987 he resigned as Field Service Coordinator for Surgikos, Inc. (a division of Johnson & Johnson) after fifteen years of service to pursue a full-time career in sculpture. He served on the Board of Directors of the Texas Sculpture Association for three years, and the board of the Dallas Visual Arts Center for six years. David taught wood and stone carving classes at the Creative Arts Center of Dallas for ten years. Hickman works in all metals, carved stone, slumped glass, and glass mosaic. In recent years he has frequently used wind-activated, kinetic elements to create signature site-specific works. He was selected by the Texas Commission on the Arts as the Texas State Artist Three-Dimensional category for the year 2004. He was also selected by the Dallas Chapter of the American Institute of Architects as Artist of the Year 2005.