Barry Gifford

American novelist, poet, screenwriter, biographer, editor (born 1946).

Born October 18th, 1946 (age 79 years) in Chicago.

Gregory Chaitin

Argentinian mathematician and computer scientist.

Born November 15th, 1947 (age 78 years) in Chicago.

William A. Dembski

American intelligent design advocate.

Born July 18th, 1960 (age 65 years) in Chicago.

Mike Resnick

American writer (1942-2020).

Born March 5th, 1942 in Chicago.

Died January 9th, 2020 at 77 years old in Cincinnati (cancer). ^[ref]

Whitcomb L. Judson

Inventor.

Born March 7th, 1846 in Chicago.

Died December 7th, 1909 at 63 years old

Gaylord Simpson

American paleontologist (1902–1984).

Born June 16th, 1902 in Chicago.

Died October 6th, 1984 at 82 years old in Tucson.

Julian May

American science fiction, fantasy, horror, science and children's writer (1931–2017).

Born July 10th, 1931 in Chicago.

Died October 17th, 2017 at 86 years old in Bellevue. ^[ref]

Robert Plomin

American psychologist and geneticist.

Born February 20th, 1948 (age 78 years) in Chicago.

Barry Kelley

American actor (1908-1991).

Born August 19th, 1908 in Chicago.

Died June 15th, 1991 at 82 years old in Woodland Hills.

Elizabeth Dilling

American activist (1894-1966).

Born April 19th, 1894 in Chicago.

Died May 26th, 1966 at 72 years old