Correspondence, diaries, writings, and memorabilia of William Winston Pettus, surgeon at the Hsiang-Ya Hospital of the Yale-China Association in Changsha, China. His letters to his parents, beginning in 1928, report on his undergraduate life at Yale and later on medical school. After 1940, when he returned to China, his letters discuss his day-to-day activities as a doctor in wartime at the hospital in Changsha. The writings include diaries and drafts of unpublished articles. Also in the papers is correspondence among family members after his death about a biography, a memorial fund, and related matters.