Columbia subject headings:
United States--History--Civil War, 1861-1865--Medical care.
United States--History--Civil War, 1861-1865--Regimental histories.
Harvard subject headings:
United States--History--Civil War, 1861-1865--Medical care
United States--History--Civil War, 1861-1865--Regimental histories
United States. Army of the Potomac
Princeton subject headings:
United States--History--Civil War, 1861-1865--Medical and sanitary affairs.
United States--History--Civil War, 1861-1865--Regimental histories--Army of the Potomac.