Show ContentsDerach History, Family Crest & Coats of Arms

Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name Derach is Ó Deirg, from the word "dearg," which means red. 1

Early Origins of the Derach family

The surname Derach was first found in County Mayo (Irish: Maigh Eo) located on the West coast of the Republic of Ireland in the province of Connacht, where they held a family seat in the baronies of Carra, Erris, and Tyrawley. They were descended from Fiachra, brother of Niall Mor, more commonly known as King Niall of the Nine Hostages, perhaps Ireland's greatest General/King.

Early History of the Derach family

This web page shows only a small excerpt of our Derach research. Another 127 words (9 lines of text) covering the years 1557, 1578, 1601, 1608 and 1656 are included under the topic Early Derach History in all our PDF Extended History products and printed products wherever possible.

Derach Spelling Variations

Names from the Middle Ages demonstrate many spelling variations. This is because the recording scribe or church official often decided as to how a person's name was spelt and in what language. Research into the name Derach revealed many variations, including Derig, O'Derig, O'Derrig, Derrig, Derieg, Derick, Derrick, O'Derick, O'Derrick, O'Durrig, Durrig, Derigan, Derigen and many more.

Early Notables of the Derach family

Notable among the family name at this time was Donogh Dáll Ó Derrig, aka Blind Donogh O'Derrick, Irish rapparee, executed December 1656.Thomas Derrick (fl. 1608) was an English executioner. Little is known of his lineage. However, he was convicted of rape, and was subequently pardoned if he became the executioner at Tyburn. Derrick executed more than 3,000 people in his career, including his pardoner, the Earl of Essex, in 1601. The...
Another 70 words (5 lines of text) are included under the topic Early Derach Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Derach family

To escape the religious and political discrimination they experienced primarily at the hands of the English, thousands of Irish left their homeland in the 19th century. These migrants typically settled in communities throughout the East Coast of North America, but also joined the wagon trains moving out to the Midwest. Ironically, when the American War of Independence began, many Irish settlers took the side of England, and at the war's conclusion moved north to Canada. These United Empire Loyalists, were granted land along the St. Lawrence River and the Niagara Peninsula. Other Irish immigrants settled in Newfoundland, the Ottawa Valley, New Brunswick and Nova Scotia. The greatest influx of Irish immigrants, however, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America and Australia. Many of those numbers, however, did not live through the long sea passage. These Irish settlers to North America were immediately put to work building railroads, coal mines, bridges, and canals. Irish settlers made an inestimable contribution to the building of the New World. Early North American immigration records have revealed a number of people bearing the Irish name Derach or a variant listed above, including: John Derick, who arrived in Philadelphia, Pennsylvania in 1865; Edward Derigan, who arrived in Philadelphia in 1875; the Widow Derrick, who settled in Georgia in 1738 with two sons and two daughters.



  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)


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