Biography · Biography & Culture
Calvin Duncan
Biography
United States
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Calvin F. Duncan (born 1962 or 1963) is an American legal advocate and prisoner rights activist. As a teenager, in 1982, he was arrested for murder, then convicted and imprisoned at Louisiana State Penitentiary for most of 28 and a half years. While imprisoned, and with only a ninth-grade education, Duncan taught himself criminal law, and served as a jailhouse lawyer, helping other convicts get their release.
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Wikipedia contributors — original record ↗
Biography text · CC BY-SA 4.0 · Source checked 2026-10-13
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