Individual Details

The following was written by James Ambrose Reardon and was based on research he conducted on a trip to Ireland in 1904:
This ancient family is one of many distinguished septs which find common origin in descent from "Eugene the Great" or Eoghan Mor, a grandson of Eoghan Mor, King of Munster in the second century of the Christian era.  The many families of septs who claim Eugene the Great as a common ancestor, known as the Eogannachts or Eugenians, are, among others, the MacCarthys, O'Sullivans, O'Keefes, O'Donovans, and O'Reardons or O'Riordans, these from most remote times were the dominant families of the Eugenian stock in the portion of Munster known as Desmond  - the modern counties of Cork and Kerry.  The direct founder of the family of O'Riordan was Dungal, 17th in descent from Eoghan Mor.  From this Dungal the clan O'Riordan took the name of Iann Dungall, Dungal, or Donghile, an ancestor to O'Carroll, Prince of Ely, and  his line has been traced by the annalists as follows:
1. Eoghan Mor, King of Desmond or South Munster in the 2nd century
2. Olioll Olinn, son of Eoghan Mor, who was the first king of both Munsters, Desmond and Thomond
3. Owen Mor, son of Olioll Olinn
4. Fracha, or Feach, son of Owen Mor
5. Olioll Flann-beag, son of Fracha, King of Munster for 30 years
6. Lughaidh, son of Olioll Flann-beag
7. Corc, son of Lughaidh, though a pagan, was one of the Kings or Princes appointed by the Triennial Parliament held in Tara in St Patrick's time to review, examine, and reduce into order all the monuments of antiquity, genealogies, chronicles, and records of the kingdom
8. Nathfraoch, son of Corc, had a brother named Cos
9. Aongus, or Aonoas, son of Nathfraoch, was the first Christian.  He had 24 sons and 24 daughters, whereof he devoted to God one-half of both sexes.  Aongus was baptized bt St Patrick
10. Felim, son of Aongus, was the second King of Munster
11. Grinnthann, son of Felim
12. Aodh Dubh (Duff), called Black Hugh, son of Grinnthann, reigned for 15 years
13. Failbhe Flann, son of Aodh, reigned for 40 years
14. Colgan, son of Failbhe Flann
15. Nadraoch, son of Colgan
16. Daolgusa, son of Nadraoch
17.  Dangaile, or Dungal, son of Daolgusa, and founder of the Clan Dongaile of which the chief family was O'Riordan.  The O'Riordans were chiefs of the Lords of the Mainster O'Riordan, a district in Muskerry, County Cork
In the Irish Brigade of the 18th century in Spain, Don Guillemo O'Riordan was a cadet (1725) in the Regiment of Ultonio (Ulster in English).  Don Gelasio O'Riordan was a Lieutenant Colonel in the Regiment of Limerick in 1708.  The latter was a native of Muskerry, County Cork, and his descendants are the O'Riordans of Nantes, France.  The armorial insignia now registered in the Ulster office of Arms, Dublin Castle, by the Muskerry (and their offshoot of Nantes); French branches are thus recorded.  Arms: Quarterly 1st and 4th gules, out of clouds in sinister side a dexter arm fessways, proper, holding a dagger erect, pommel or hilt, or 2nd and 3rd argent, a lion rampant gules against a tree in dexter, couped, proper.  Crest: a Fleur-de-Lis gules.  Motto: Pro Deo et Patria (For God and Country).
Original Irish name: Na Riagain or O'Riagain

Birth	17 Jul 1859	Quincy Township, Adams, Illinois, United States
Marriage	6 Jun 1883	Saint Louis, St. Louis City, Missouri, United States - Margaret Mary Kilcullen
Residence	1900	Precinct 14 City of St. Louis Ward 2, St. Louis, Missouri, United States
Residence	1910	St Louis Ward 25, St Louis (Independent City), Missouri, United States
Death	7 May 1918	from a cerebral hemorrhage - St Louis, St. Louis, Missouri, United States
Burial	9 May 1918	lot 0645 section 012 - Calvary Cemetery, Saint Louis, St. Louis City, Missouri, United States
Probate	14 May 1918	St Louis, St. Louis City, Missouri, United States

Spouse	Margaret Mary Kilcullen (1860 - 1932)
Child	Robert E Reardon (1884 - 1941)
Child	Walter Reardon (1886 - 1897)
Child	James Ambrose Reardon Jr. (1888 - 1954)
Child	Joseph Vincent Reardon (1889 - 1947)
Child	Marguerite R. Reardon (1893 - 1991)
Child	Genevieve Reardon (1895 - 1972)
Child	Catherine V Reardon (1899 - 1958)

Father	Michael Reardon (1828 - 1895)
Mother	Amelia Burns (1832 - 1906)
Sibling	Mary Amelia Reardon (1856 - 1906)
Sibling	Thomas J Reardon (1857 - 1905)
Sibling	Mary Reardon (1861 - 1865)
Sibling	John Edward Reardon (1865 - 1921)
Sibling	Michael J Reardon (1866 - 1938)
Sibling	Patrick William Reardon (1871 - 1926)

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