Resource List: Legislative Branch
- WILLIAMS, William, Congress, IN (1821-1896)
- William WILLIAMS, Congress, NY (1815-1876)
- William Robert WILLIAMS, Congress, NY (1884-1972)
- William Elza WILLIAMS, Congress, IL (1857-1921)
- William Brewster WILLIAMS, Congress, MI (1826-1905)
- Thomas WILLIAMS, Congress, AL (1825-1903)
- Thomas Wheeler WILLIAMS, Congress, CT (1789-1874)
- Thomas WILLIAMS, Congress, PA (1806-1872)
- WILLIAMS, Thomas, Congress, AL (1825-1903)
- Thomas Sutler WILLIAMS, Congress, IL (1872-1940)
- Thomas Scott WILLIAMS, Congress, CT (1777-1861)
- Thomas Hill WILLIAMS, Congress, MS (1780-1840)
- Thomas Hickman WILLIAMS, Congress, MS (1801-1851)
- Sherrod WILLIAMS, Congress, KY (1804)
- Seward Henry WILLIAMS, Congress, OH (1870-1922)
- Robert WILLIAMS, Congress, NC
- Richard WILLIAMS, Congress, OR (1836-1914)
- Reuel WILLIAMS, Congress, ME (1783-1862)
- Nathan WILLIAMS, Congress, NY (1773-1835)
- Morgan B. WILLIAMS, Congress, PA (1831-1903)