The introduction outlines the major themes of the book and its scope and rationale. It explains briefly the origins of the book and its relationship to the companion volume by the historian David Fitzpatrick, The Americanisation of Ireland: Migration and Settlement 1841–1925 (2020). The chapter sets out the volume’s use of the term Americanisation and the value of applying this framework for examining Irish society in the decades after the Great Famine. It considers the question of race and the multicultural American identity and briefly discusses the scholarship on whiteness and Irish identity. Returned migration is a key aspect of the influence of the United States of America on Irish culture and the chapter provides information on the extent and exceptionalism of Ireland’s returned migration trends. The chapter includes a survey of the international and Irish historiography of the phenomenon and of Ireland’s relationship to America. It concludes by outlining the structure of the book, emphasising the thematic and interdisciplinary approach.

The Afterword returns to the origin of the volume, a project conceived by the late historian David Fitzpatrick. Foster reflects on Fitzpatrick’s legacy as an historian of modern Ireland and the diaspora, examining his influence on Irish and international historiography. He traces Fitzpatrick’s scholarship from his pioneering first monograph, Politics and Irish Life 1913–1921: Provincial Experiences of War and Revolution (1977) to his posthumous monograph, The Americanisation of Ireland: Migration and Settlement 1841–1925, and his plans for this volume. Fitzpatrick pioneered new methods for his historical research of the Irish Revolution and his explorations of emigrant letters, and Foster highlights the influence of his scholarship on later generations. He draws connections between this volume and Fitzpatrick’s publications, noting the enduring legacy of Fitzpatrick’s work and his influence.