[1] Formerly a Whig. He became a Republican in 1856.
Father: David Davis (physician, d. before Davis's birth)
Mother: Ann Mercer (d. 1851)
Wife: Sarah Woodruff Walker (m. 19-Oct-1838, d. 1879)
Wife: Adeline E. Burr (m. 14-Mar-1883)
High School: New Ark Academy, Delaware
University: Kenyon College (1832)
Law School: New Haven Law School (briefly)
US Senator, Illinois (4-Mar-1877 to 3-Mar-1883)
US Supreme Court Justice (10-Dec-1862 to 4-Mar-1877, resigned)
Illinois State Official Judge, 8th Judicial Circuit (1848-62)
Illinois State House of Representatives (1844-48)
Illinois State Bar Association 1835
Funeral: Abraham Lincoln (1865)