Walter S. Carpenter Jr.

Walter Samuel Carpenter Jr. (January 8, 1888 – February 2, 1976) was an American corporate executive from Wilmington, Delaware, who oversaw the DuPont company's involvement in the Manhattan Project to produce an atomic bomb for use during World War II.

In 1919, at age 31, Carpenter was the youngest man elected to DuPont's board of directors, and the first who was not from the du Pont family.

Born in Wilkes-Barre, Pennsylvania, to Walter Samuel Carpenter and Isabella Morgan, Carpenter studied mechanical engineering at Cornell University, and participated in DuPont’s summer programs at Gibbstown and Carneys Point, New Jersey, before dropping out of school his senior year to manage DuPont’s Chilean nitrate interests.

He began working with one of his two brothers, R. R. M. Carpenter, in 1911, helping guide the company’s development of celluloid and dyes.

Carpenter was responsible for DuPont's 1933 acquisition of Remington Arms and its partnership with IG Farben for producing war supplies.