The Curley Name

Primary county: Roscommon {c.strip()}{c.strip()}

History and Origins

The Mac Thoirdealbhaigh sept — Curley in anglicised form — were part of the Connacht tribal world, established in the territory of Roscommon and Galway that formed the political heartland of the O'Connor kingdom. The personal name Toirdhealbhach — Thor-shaped, or resembling Thor — was one of the most prestigious forenames in medieval Connacht, borne by several O'Connor kings including Toirdhealbhach Mór Ó Conchobhair, king of Connacht 1106–1156, who is regarded as the last king to approach real dominion over the whole of Ireland. The Mac Thoirdealbhaigh took their name from a distinguished ancestor bearing this prestigious forename.

Connacht and the Viking Legacy

The presence of a Norse god-name at the root of an Irish Gaelic surname is a reminder of the profound impact of the Viking Age on Irish culture. From the ninth century onward, Norse raiders and then settlers transformed the coastline of Ireland, founding the towns of Dublin, Waterford, Wexford, Limerick, and Cork and integrating into Irish society through intermarriage and trade. The name Thor entered Gaelic naming tradition through this contact, becoming Toirdhealbach — a thoroughly Gaelicised name that nonetheless preserved the Norse root. The Mac Thoirdealbhaigh family thus carry in their very name a trace of the Viking world.

The Roscommon and Galway Territory

The Mac Thoirdealbhaigh were established in the border zone between Roscommon and Galway — a landscape of rivers, lakes, and rich agricultural land that was contested between the O'Connor Roe, O'Connor Don, and MacDermot branches that fragmented the old Connacht kingdom after the Norman period. The Cromwellian transplantation of the 1650s, which forced Catholic landholders east of the Shannon to relocate west, brought additional Catholic families into the Connacht zone, but it also dispossessed many established Gaelic families including branches of the Mac Thoirdealbhaigh. By the nineteenth century, Curley families in Roscommon and Galway were predominantly smallholders and tenant farmers.

The Famine and the Boston Connection

Connacht was devastated by the Great Famine of 1845–1852, and Roscommon and Galway were among the worst-affected counties. Curley families emigrated in large numbers to the United States — primarily to Boston and the New England states. The Connacht emigrants who arrived in Boston in the late 1840s and 1850s formed the base of what became one of the most powerful Irish-American urban political machines in American history, and the Curley name was to become inseparably associated with Boston's Irish-American political world through the career of James Michael Curley.

The Diaspora

The Curley diaspora is concentrated in the United States, with the largest communities in Boston and New England. Connacht emigrants — from Roscommon, Galway, and Mayo — formed the foundation of the Boston Irish community from the Famine era onward, and the Curley name is well-attested in Boston Catholic parish records, city employment records, and political archives from the 1850s.

The most celebrated Curley in American history was James Michael Curley (1874–1958), the Boston politician who served as mayor of Boston four times (1914–1918, 1922–1926, 1930–1934, 1946–1950) and as Governor of Massachusetts (1935–1937). Born in the Roxbury district of Boston to Galway immigrant parents, Curley embodied the Irish-American political tradition at its most theatrical and combative. His career — marked by towering popularity among Boston's Irish working class and by repeated corruption charges — was the basis for Edwin O'Connor's novel The Last Hurrah (1956) and the film of the same name starring Spencer Tracy.

Notable Curley Families

• James Michael Curley (1874–1958) — Four-time mayor of Boston (1914–1950) and Governor of Massachusetts, born in Roxbury to Galway immigrant parents. The most flamboyant Irish-American urban politician of his era — the basis for Edwin O'Connor's The Last Hurrah.
• Daniel Curley (1845–1883) — Irish-American Fenian, one of the 'Invincibles' who carried out the Phoenix Park Murders in Dublin in 1882. Born in County Tyrone, he was hanged for his role in the assassination.
• Thomas Curley (19th century) — Roscommon-born Famine emigrant who settled in Boston, representative of the Connacht emigrants whose descendants built Irish-American Boston into a political and cultural powerhouse.
• Margaret Curley (born 1957) — American academic and public servant of Irish-American descent, longtime senior official in US federal education administration.