Robert A. "Bob" Madigan (November 28, 1942 – May 4, 2006) was an American politician. Born in Lincoln, Illinois, Madigan received his bachelor's degree from Millikin University. His brother was Edward Rell Madigan. Madigan served as city clerk of Lincoln, Illinois. From 1987 to 2001, Madigan served in the Illinois State Senate as a Republican. He was then appointed to the Illinois Industrial Commission. He died in Lincoln, Illinois. Notes 1942 births 2006 deaths People from Lincoln, Illinois Millikin University alumni Republican Party Illinois state senators 20th-century American politicians