Dr. Duke completed his undergraduate studies at Auburn University in 1975. Upon graduation he joined the United States Army and served as a nuclear weapons officer along the East German border in southern Germany. After completing his first tour of duty he returned to the United States and received his doctorate in dental medicine from the University of Alabama in Birmingham in 1986. He then returned to Germany and served as the Regimental Dental Surgeon for the 2nd Armored Calvary Regiment and the officer in charge of the 87th Medical Detachment (Dent Svc) in operation Desert Storm in Iraq. During this time period he completed his training as a forensic dentist in Nuremberg Germany. In 1992 Dr. Duke returned to the United States and completed his training as an oral and maxillofacial surgeon in Augusta, Georgia. He then returned to Germany where he served as the officer in charge of the European Medical Command's Head and Neck Trauma Team in Heidelberg, Germany. Additionally, he helped form and led the United States military's only Disaster Response Team at Landstuhl Medical Center. This team was responsible for the recovery and identification of both military and civilian personnel in Europe, Africa, and Southwest Asia. Dr. Duke has lectured extensively on the subject of forensic recovery and identification in the United States, Germany, Belgium, Hungary, Bosnia and the Czech Republic. He has worked with the United Nations mass grave recovery team in Sarajevo and Visoko, Bosnia. Dr. Duke has multiple combat tours in Iraq, Afghanistan, Pakistan, and Bosnia. In 2003 Dr. Duke returned to the United States and retired in 2004 after twenty-eight years of service. He is the recipient of two bronze star medals.
Dr. Duke is active in numerous professional organizations including the American Association of Oral and Maxillofacial Surgeons, the American Dental Society of Anesthesiology, the Alabama Association of Oral and Maxillofacial Surgeons, the Eighth District Dental Society, and the Huntsville/Madison County Dental Society. He is a diplomate of the American Board of Oral and Maxillofacial Surgery.Dr. Duke and his wife, Terrie, reside in Owens Crossroads and are the parents of four children. The family is active in Christ Lutheran Church in Albertville. Terrie has a master's degree in special education from the University of Maryland and has extensive experience in teaching children with autism.