1. Leonarde Keeler was an American inventor best known for co-inventing the polygraph.
18 Facts About Leonarde Keeler
1. 2.
Leonarde Keeler was named after the polymath Leonardo da Vinci, and preferred to be called Nard.
3.
Leonarde Keeler was a Berkeley high school student and amateur magician.
4.
Leonarde Keeler was born in 1903 in North Berkeley, California.
5.
Leonarde Keeler was a keen assistant to Larson who had developed a multi-tasking polygraph.
6.
Leonarde Keeler moved shortly after that to enroll in UCLA to follow Vollmer who accepted a new job as the Chief of Police for Los Angeles.
7.
Leonarde Keeler used the lie detector on two criminals in Portage, Wisconsin, who were later convicted of assault when the lie detector results were introduced in court.
8.
One of the earlier uses of the Leonarde Keeler Polygraph was in 1937, in connection to the murder of 5-year-old Roger William Loomis in Lombard, Illinois.
9.
In 1938, Leonarde Keeler conducted a polygraph test upon Francis Sweeney, the chief suspect in the Cleveland torso murders.
10.
Leonarde Keeler went as far as appearing in person in the 1948 film noir docudrama, Call Northside 777 with James Stewart, Richard Conte, and Lee J Cobb, playing himself.
11.
Leonarde Keeler moved to Chicago in 1930 to work in the Scientific Crime Detection Laboratory at Northwestern University and ultimately became the head of the laboratory in 1936.
12.
Leonarde Keeler held that position until 1938 when he entered private business.
13.
Leonarde Keeler opened the first polygraph school, known as the 'Keeler Institute.
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Leonarde Keeler was the son of author and naturalist Charles Leonarde Keeler.
15.
Leonarde Keeler married a fellow psychology student Katherine Applegate in 1930 in Chicago.
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Leonarde Keeler was trained as a forensic sleuth, becoming the nation's first female handwriting analyst.
17.
Later on, she established her own all-woman's detective agency in Chicago, specializing in forensic investigation, and left Leonarde Keeler to marry another man, Rene Dussaq, and during World War II joined the WASPS.
18.
Leonarde Keeler died in 1944 near Patterson Field in Ohio while flying solo across the country to help halt the disbanding of the WASPs.