I am interested in finding out more about the Grave Registration Units in World War 2, specifically I want to know how many people were part of these units, who they were and if there are any records on what they did during the war and how they identified bodies. I am especially interested in personal correspondence about their work, for example, letters they wrote home describing their work. I have reached out to the Library of Congress and the U.S. Army Center of Military History. Would the National Archives have information/documentation on these units? Are there other places I should try?