1862 — Feb-June 1865 (41 months), Scurvy, Confederate POWs, Camp Douglas, IL — 39

–39  US Army Surgeon General. Medical and Surgical History of the War of the Rebellion                      

(Part III, Vol. I, Medical History), page 46.[1] (deaths out of 3,745 cases)

Source

United States Army Surgeon General. The Medical and Surgical History of the War of the Rebellion (Part III, Vol. I, Medical History). Chapter 1 “On the Medical Statistics of the War, Section IV. Prevalence of Disease, and Mortality  Therefrom, Among the Confederate Troops in United States Prisons,” pp. 33-45. Washington, DC: Government Printing Office, 1888. Accessed 5-24-2018 at: https://collections.nlm.nih.gov/catalog/nlm:nlmuid-14121350R-mvset

[1] Table XVIII. Showing the number of Cases of certain Specified Diseases and Classes of Disease, and of Deaths attributed to them, among the Confederate Prisoners of War at the principal Prison Depots, for the period covered by the records of each prison.