Winford Lee Lewis (May 29, 1878 – January 20, 1943)[1] was a US soldier and chemist best known for his rediscovery of the chemical warfare agent lewisite in 1917.

He was born in Gridley, California and died in his home in Evanston, Illinois in 1943 following a fall.

He became a chemistry professor at Northwestern University until the outbreak of World War I.

During the war, he served in the United States Chemical Warfare Service.

[6] After the war, Lewis gave several high profile speeches in the defense of the Chemical Warfare Service and the use of chemical weapons in warfare.