General Vaughan was responsible for the logistical support of American and Allied forces in China during World War II, focused on Army logistics for 35 years of his 50-year career at every level and in every functional area. He served as a Quartermaster in research and development, procurement, supply, staff and command – from Company A in the field to Theater Headquarters, on the Army General Staff, the Joint Chiefs of Staff, the Army Materiel Command, and the Defense Supply Agency.