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Irish American Research Guide

Library of Congress

In March, the National Archives celebrates the contributions of Irish Americans in our nation’s history during Irish American Heritage Month.

Smithsonian Institution

Explore collection items related to Ireland and Irish American history and heritage. Enjoy the music of Ireland with Smithsonian Folkways Recordings.

National Archives and Records Administration

Compiled by Mary Champagne, Mark F. Hall, Anne Toohey, and Abby Yochelson, Reference Specialists.

The March 2022 U.S. Presidential Proclamation

For centuries, Irish Americans have played a crucial role in helping define the soul of our Nation, and today, nearly 1 in 10 Americans proudly trace their roots back to the Emerald Isle. With hope and faith in their hearts, the first immigrants from Ireland crossed the Atlantic in search of liberty and opportunity. It was the dream of a better life that brought my ancestors — the Blewitts of County Mayo and the Finnegans of County Louth — and countless other Irish immigrants.

Irish Soldiers in the Union Army

Since before the founding of our Nation, Irish immigrants have arrived on our shores with an unyielding spirit of determination that has helped define America’s soul and shape our success across generations.

PGCMLS Online Resources

Discover historical insights, photos, and records about your ancestors. Build your own family tree with authenticated genealogical information. Ancestry provides the world's largest collection of online records. This resource is only available by visiting the Library.

A collection of research materials containing family history, genealogies, city directories, census data, and schedules.

The Gifts and Glow of Poetry