Show ContentsRadigan Surname History

Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name Radigan is Ó Reachtagain, which is derived from the word "reacht," which means "decree."

Early Origins of the Radigan family

The surname Radigan was first found in Roscommon (Irish: Ros Comáin) located in central Ireland in the province of Connacht, where their recorded history precedes the 12th century. They are said to be descended from Iomchadh, Prince of Tara, second son of King Colla da Chrioch, down to O'Kelly, Prince of Hy-Maine in Roscommon.

Early History of the Radigan family

This web page shows only a small excerpt of our Radigan research. Another 124 words (9 lines of text) are included under the topic Early Radigan History in all our PDF Extended History products and printed products wherever possible.

Radigan Spelling Variations

The recording of names in Ireland during the Middle Ages was an inconsistent endeavor at best. Since the general population did not know how to read or write, they could only specify how their names should be recorded orally. Research into the name Radigan revealed spelling variations, including Ratigan, Rattigan, Rhatigan, Ractigan, Rattican, Rhattigan, O'Rattigan, O'Ratigan, McRattigan, McRatigan, McRhatagan, Rattigen, Ratigen, Ratrigan, Rattrigan, Rattigin, Ratigin, Rattighan and many more.

Early Notables of the Radigan family

More information is included under the topic Early Radigan Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Radigan family

Irish families left their homeland in astonishing numbers during the 19th century in search of a better life. Although individual reasons vary, most of these Irish families suffered from extreme poverty, lack of work opportunities, and exorbitant rents in their homeland. Many decided to travel to Australia or North America in the hopes of finding greater opportunities and land. The Irish immigrants that came to North America initially settled on the East Coast, often in major centers such as Boston or New York. But like the many other cultures to settle in North America, the Irish traveled to almost any region they felt held greater promise; as a result, many Irish with gold fever moved all the way out to the Pacific coast. Others before that time left for land along the St. Lawrence River and the Niagara Peninsula, or the Maritimes as United Empire Loyalists, for many Irish did choose to side with the English during the American War of Independence. The earliest wave of Irish migration, however, occurred during the Great Potato Famine of the 1840s. An examination of early immigration and passenger lists has revealed many people bearing the Radigan name: Mary Rattigan who was listed as having arrived in Nova Scotia in 1825; Peter Ratigan arrived in Quebec in 1826; Daniel, Mary, Patt and Peter Rattigan all of whom were recorded as having arrived in New York, New York in 1850.


Contemporary Notables of the name Radigan (post 1700) +

  • Joseph Francis Radigan (1905-1975), American Democratic Party politician, Member of Vermont State House of Representatives, 1957-59; U.S. Attorney for Vermont, 1961-69 1
  • Joseph Radigan, American Republican politician, Candidate for Mayor of Gary, Indiana, 1967 1
  • Edmund P. Radigan, American Republican politician, Member of New York State Assembly from Richmond County 2nd District, 1945-48 1


  1. The Political Graveyard: Alphabetical Name Index. (Retrieved 2015, November 9) . Retrieved from http://politicalgraveyard.com/alpha/index.html


Houseofnames.com on Facebook