- Born
- Died
- Birth nameJohn Leonard Polito Jr.
- Jack Leonard was born on January 6, 1913 in San Francisco, California, USA. He was a writer, known for The Narrow Margin (1952), His Kind of Woman (1951) and Narrow Margin (1990). He was married to Dale Kathlyn de Wint. He died on January 9, 1954 in Los Angeles, California, USA.
- SpouseDale Kathlyn de Wint(October 12, 1940 - January 9, 1954) (his death, 3 children)
- RelativesJulie Leonard(Sibling)Jackie Cooper(Niece or Nephew)
- Uncle of actor/director Jackie Cooper. Brother of actress Julie Leonard.
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