Columbia subject headings:
Lincoln, Abraham, 1809-1865--Family.
Lincoln, Mary Todd, 1818-1882.
Presidents' spouses--United States--Biography.
Harvard subject headings:
Biographies.
Lincoln, Abraham, 1809-1865--Family.
Lincoln, Mary Todd, 1818-1882.
Presidents' spouses--United States--Biography
Princeton subject headings:
Lincoln, Abraham, 1809-1865--Family.
Lincoln, Mary Todd, 1818-1882.
Presidents' spouses--United States--Biography.