John H. Fremlin

John Heaver Fremlin was an English nuclear physicist.

Early life

Fremlin was born in Kingsbury, Middlesex. Celia Fremlin was his sister.

Career

Fremlin was secretary of the Cambridge Scientists' Anti-War Group. Responding to concerns about the use of poison gas bombs, he hosted experiments by the group in his room in Trinity College to determine the rate at which a gas might leak into a sealed room. However Jack Haldane queried the rigour of his scientific methodology.
His papers are archived at the University of Birmingham.