About John Duncan
Lived 1919 – 1988 (aged 69). John Duncan was an American politician and lawyer.
Personal life
John J. Duncan Federal Building in Knoxville, Tennessee in 2025
Duncan married Lois Swisher of Iowa City, Iowa in 1942. They had four children, including John J. "Jimmy" Duncan Jr., who won his father's former congressional seat in the special election that followed his father's death.
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Important facts
Family & relationships
People in John Duncan's life
Named in this biography and alive at the same time
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped John Duncan's
Frequently asked questions
Who was John Duncan?
American attorney and Republican politician (1919-1988)
When was John Duncan born?
John Duncan was born on 14 March 1919 in Huntsville.
When did John Duncan die?
John Duncan died on 21 June 1988 in Knoxville.
What was John Duncan's occupation?
John Duncan was a politician and lawyer.
What nationality was John Duncan?
John Duncan was American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Duncan. https://biography.guide/john-duncan-politician-1919/
MLA: "John Duncan." Biography.guide, https://biography.guide/john-duncan-politician-1919/.
Chicago: "John Duncan." Biography.guide. https://biography.guide/john-duncan-politician-1919/.
Data last updated: 2026-09-22 · Spot an error? Report a correction.
Portrait: Wikimedia Commons · author & licence
Page generated 2026-09-27 05:02 UTC