Scope and Contents This collection consists of the papers of Jefferson H. Clark, a Philadelphia, Pennsylvania physician, who was a field surgeon in France during World War I, and of the research papers of his daughter Mary Clark Shade (1928-2009), who was working on a book documenting her father's WWI duty. Jefferson H. Clark's papers include diaries, an officer's record book, correspondence, military orders and records, maps (one of which is labeled 'trench map'), photographs, dictionary, his...