Columbia subject headings:
Whitman, Walt, 1819-1892.
Harvard subject headings:
United States--History--Civil War, 1861-1865--Photographs.
Whitman, Walt, 1819-1892
Whitman, Walt, 1819-1892--Portraits.
Princeton subject headings:
Portraits.
Whitman, Walt, 1819-1892--Portraits.
Whitman, Walt, 1819-1892.