Henry Wallace Clark (July 27, 1880 – April 7, 1948) was an American consulting engineer, known for popularizing the work of Henry Gantt with his 1922 work "The Gantt chart; a working tool of management". In 1934 he was awarded the Henry Laurence Gantt Medal by the ASME. A year after his death the Wallace Clark Award was initiated, an award for distinguished contribution to scientific management in the international field. Source: Wikipedia (en)