ARTFEED — Contemporary Art Intelligence

Irish Immigrants' Crucial Role in American Revolution Victory

cultural-heritage · 2026-07-01

Irish immigrants, motivated by experiences of British oppression in Ireland, were indispensable to the American Revolution. Despite being only 10% of the U.S. population, they made up 25-50% of the Continental Army. Key figures include Commodore John Barry, often called the 'father of the U.S. Navy'; John Dunlap, the Irish-born printer who produced the first broadsides of the Declaration of Independence; and spies like Hercules Mulligan and Lydia Barrington Darragh. Eight signers of the Declaration were of Irish descent, three born in Ireland. Irish-born officers served as generals and aides-de-camp to George Washington. The article also details the Penal Laws that disenfranchised Irish Catholics and Presbyterians, leading to mass emigration. The Irish Rebellion of 1798 was inspired by the American Revolution.

Key facts

  • Irish immigrants represented 25-50% of the Continental Army despite being 10% of the U.S. population.
  • Commodore John Barry, an Irish immigrant, is considered the 'father of the U.S. Navy'.
  • John Dunlap, born in Ireland, printed the first broadsides of the Declaration of Independence.
  • Eight signers of the Declaration of Independence were of Irish descent; three were born in Ireland.
  • Irish-born spies Hercules Mulligan and Lydia Barrington Darragh provided crucial intelligence.
  • Nine of George Washington's generals were born in Ireland.
  • The Penal Laws in Ireland barred Catholics from voting, holding office, and owning expensive horses.
  • The Irish Rebellion of 1798 was inspired by the American Revolution.

Entities

Artists

  • John Barry
  • James McHenry
  • Lydia Barrington Darragh
  • Stephen Moylan
  • James Smith
  • Thomas McKean
  • Charles Thomson
  • John Dunlap
  • Hercules Mulligan
  • Alexander Hamilton
  • George Washington
  • Nathanael Greene
  • Thomas Sullivan
  • William Howe
  • Robert Walsh Jr.
  • Robert N. Fanelli
  • Nathan Mannion
  • Melanie McComb
  • Kerby A. Miller
  • Loraine Boettner
  • Ian Crozier
  • Sonja Anderson

Institutions

  • Continental Navy
  • Continental Army
  • Epic the Irish Emigration Museum
  • American Ancestors
  • Ulster-Scots Agency
  • American Battlefield Trust
  • Library of Congress
  • National Portrait Gallery, London
  • Smithsonian magazine

Locations

  • Ireland
  • Philadelphia
  • United States
  • England
  • Scotland
  • New England
  • Ulster
  • County Cork
  • County Wicklow
  • County Antrim
  • Coleraine
  • New York City
  • Dublin
  • Londonderry
  • North America
  • Caribbean
  • Britain

Sources