Dr William Marston and

Elizabeth Holloway

test his lie-detecting machine on Dorothy Madigan in a demonstration of its new use to untangle marital difficulties. That thing applied to her arm is called a sphygmomanometer, which gives you an idea how scientific the gadget is. Marston, is a phychologist /attorney who claims to have the ability to discern truth from falsehoods with his machine and it was he who coined the tern ‘lie detector’.

photo dated March 8, 1938

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