Columbia subject headings:
Harvard subject headings:
United States--History--Civil War, 1861-1865--Participation, Irish American.
United States--History--Civil War, 1861-1865--Participation, Irish.
Princeton subject headings:
United States--History--Civil War, 1861-1865--Participation, Irish American.
United States--History--Civil War, 1861-1865--Participation, Irish.