Madigan's PhD was on the 19th century mathematician and philosopher William Kingdon Clifford, and he wrote a 2009 book about Clifford.
Timothy Leary | Timothy Dalton | Timothy Spall | Timothy West | Timothy F. Murphy | Timothy Geithner | Timothy Zahn | Timothy Hutton | Timothy Hackworth | Timothy Greenfield-Sanders | Timothy Findley | Timothy McVeigh | Timothy McSweeney's Quarterly Concern | Timothy Matlack | Timothy Parker (puzzle designer) | Timothy Parker | Timothy Freke | Timothy Bradley | Lisa Madigan | Christopher Timothy | Timothy Well | Timothy Thomas Fortune | Timothy Sullivan | Timothy Mowl | Timothy Manning | Timothy H. O'Sullivan | Timothy Harrington | Timothy Garton Ash | Timothy F. Ritchey | Timothy Fok |