John Costello
United States Navy Medal of Honor recipient
About John Costello
Lived 1850 – 1887 (aged 36–37).
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Important facts
Contemporaries
People whose lives overlapped John Costello's
Frequently asked questions
Who was John Costello?
United States Navy Medal of Honor recipient
When was John Costello born?
John Costello was born in 1850 in Rouses Point.
When did John Costello die?
John Costello died on 11 April 1887.
Sources & further reading
· DBpedia: John Costello (Medal of Honor)
Cite this page
APA: Biography.guide. (2026). John Costello. https://biography.guide/john-costello-1850/
MLA: "John Costello." Biography.guide, https://biography.guide/john-costello-1850/.
Chicago: "John Costello." Biography.guide. https://biography.guide/john-costello-1850/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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