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The War AtlasThe · War · Atlas

COMMANDER // 1834–1878

John O'Neill

United States2 battles1 war

Lifespan

1834 – 1878

1840185018601870Fenian raids · 1866-1871Battle of Ridgeway — June 2, 1866 · Fenian Brotherhood · Fenian raidsBattle of Eccles Hill — May 25, 1870 · Fenian Brotherhood · Fenian raids

Active service 1866–1870 — 2 battles across 1 war; first command at age 32.

Biographical excerpt pending · External reference · Wikipedia

Battles (2)

Last verified June 2026
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