Columbia subject headings:
Lawyers--Illinois--Biography.
Linder, Usher F., 1809-1876.
Harvard subject headings:
Illinois--Biography.
Lawyers--Illinois--Biography
Lawyers--Illinois.
Lincoln, Abraham, 1809-1865--Career in law.
Lincoln, Abraham, 1809-1865--Law practice.
Princeton subject headings:
Illinois--Biography.
Lawyers--Illinois.
Lincoln, Abraham, 1809-1865--Law practice.