Show ContentsOmurtag History, Family Crest & Coats of Arms

While many Irish names are familiar, their past incarnations are often shrouded in mystery, reflecting the ancient Gaelic heritage of their bearers. The original Gaelic form of the name Omurtag is Ó Muircheartaigh, which is derived from the word "muircheartach," which means "navigator."

Early Origins of the Omurtag family

The surname Omurtag was first found in County Kerry (Irish:Ciarraí) part of the former County Desmond (14th-17th centuries), located in Southwestern Ireland, in Munster province.

"The name Moriarty is now largely represented in County Kerry, in which county the O'Moriartys were Chiefs in the Barony of Dunkerron." 1

The fictional Professor James Moriarty in some of the Sherlock Holmes stories written by Sir Arthur Conan Doyle was based on Doyle's discussions with a Scotland Yard inspector and his knowledge of Adam Worth (1844-1902), the German-born American criminal mastermind.

Early History of the Omurtag family

This web page shows only a small excerpt of our Omurtag research. Another 105 words (8 lines of text) covering the years 1172 and 1714 are included under the topic Early Omurtag History in all our PDF Extended History products and printed products wherever possible.

Omurtag Spelling Variations

Lacking standardized spellings, scribes and church officials recorded people's name according to how they sounded. This practice often led to the misleading result of one person's name being recorded under several different spellings. Numerous spelling variations of the surname Omurtag are preserved in the archival documents of the period. The various spellings of the name that were found include Moriarty, O'Moriarty, Murtagh, Murtag, McMoriarty and many more.

Early Notables of the Omurtag family

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

Migration of the Omurtag family

A great wave of Irish migration occurred during the 19th century as a direct result of English colonial rule and tight-fisted absentee landlords. Many of these Irish immigrants boarded passenger ships bound for North America. Those who migrated early enough were given land in either British North America or the United States; those who came in the late 19th century were typically employed in industrial centers as laborers. At whatever age they undertook the dangerous passage to North America, those Irish immigrants were essential to the speedy development of the two infant nations to which they arrived, whether they broke and settled land, helped build canals, bridges, and railroads, or produced products for consumer consumption. An examination of immigration and passenger lists has uncovered a large number of immigrants bearing the name Omurtag or one of its variants: Daniel, Ellen, Eugene, Margaret, Michael, Thomas Moriarty, who all settled in Boston in 1849; James, John, Martin, Maurice, and Michael Moriarty all arrived in Philadelphia between 1840 and 1860..



  1. Matheson, Robert E., Special Report on Surnames in Ireland with Notes as to Numeric Strength, Derivation, Ethnology, and Distribution. Dublin: Alexander Thom & Co., 1894. Print


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