Joan Marilyn Humphrey Lefkow is a senior United States district judge of the United States District Court for the Northern District of Illinois. Wikipedia
Born: 1944 (age 80 years), Nemaha County, KS
Spouse: Michael Lefkow (m. 1975; died 2005)
Children: 5
Previous office: Judge of the United States District Court for the Northern District of Illinois (2000–2012)
Education: Northwestern University, Wheaton College, and Northwestern Pritzker School of Law
Nationality: American
Appointed by: Bill Clinton