Show ContentsMacGath History, Family Crest & Coats of Arms

Etymology of MacGath

What does the name MacGath mean?

All Irish surnames have underlying meanings that can be traced back to their fullest points when the names first appeared in a Gaelic form. The name MacGath originally appeared in Gaelic as Mac Graith or Mag Raith; these are both derived from the personal name Craith which literally means "to weave" and in this case is an occupational name too. The Mac or Mc prefix would denote "son of the weaver." (O'Hart)

Anciently the family claim descent through O'Sullivan Mor which explains the stag (or antelope) in the fourth quarter of the shield. In turn, the O'Sullivans descend from the Heber line of Irish kings. (O'Hart)

Early Origins of the MacGath family

The surname MacGath was first found in County Clare (Irish: An Clár) located on the west coast of Ireland in the province of Munster, where they held a family seat from ancient times. They were the hereditary poets to the O'Briens of Thomond. The family is still found here, but present day descendants usually hail from Tipperary and Waterford. Another branch was located at Termon MacGrath on the borders of Donegal and Fermanagh. 1

The MacGraths were Chiefs in the County of Waterford since very early times. A sub-branch was located at Ballynagilty in Waterford where Philip MacGrath was the progenitor. (O'Hart)

This latter branch of the family produced Thomas McGrath of Ardagh, near Youhal, co. Cork who had four sons and twelve daughters. Thomas was descended from the Ulster M'Graths of Clanaboy, who were of the race of Clan Colla and were men of influence in County Waterford. Two of the sons emigrated to the Americas: Alderman Thomas McGrath of Montreal (died 1864); and Denis MacGrath of New York (died in 1846.) (O'Hart)

Early History of the MacGath family

This web page shows only a small excerpt of our MacGath research. Another 87 words (6 lines of text) covering the years 1067, 1097, 1172, 1240, 1389, 1395, 1400, 1415, 1421, 1423, 1433, 1450, 1460, 1463, 1523, 1580, 1600, 1622 and 1650 are included under the topic Early MacGath History in all our PDF Extended History products and printed products wherever possible.

MacGath Spelling Variations

The recording of names in Ireland in the Middle Ages was an inconsistent endeavor at best. The standardized literary languages of today were not yet reached the general citizenry. Research into the name MacGath revealed spelling variations, including MacGrath, MacGraw, MacGrauth, Magrath, Magraw and many more.

Early Notables of the MacGath family

Miler MacGrath (1523-1622), Archbishop of Cashel. Seán mac Ruaidhri Mac Craith (fl. 14th-century), later known as John Macrory Magrath, was an Irish historian known as the author of Caithréim Thoirdhealbhaigh. Mathghamhain Mág Raith, was Bishop of Killaloe, (1389-1400) and Donatus Mág Raith, O.S.A., was Bishop of Killaloe (1400-1421.) Continuing this line was Thaddaeus Mág Raith I, Bishop of Killaloe (1423-1433) and Thaddaeus Mág Raith II, Bishop of Killaloe, (1460-1463.) Miler Magrath (1523?-1622), was Archbishop of Cashel. Maolmhuire Mag Raith (Miler Magrath...
Another 80 words (6 lines of text) are included under the topic Early MacGath Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the MacGath family

Irish families fled the English-colonized Ireland in record numbers during the 19th century for North America. Many of those destitute families died from disease during, and even shortly after, the long journey. Although those that immigrated before the Great Potato Famine of the 1840s often were granted a tract of land, those that arrived later were generally accommodated in urban centers or in work camps. Those in the urban centers would labor in the manufacturing sector, whereas those in work camps would to build critical infrastructures such as bridges, canals, roads, and railways. Regardless of when these Irish immigrants came to North America, they were critical for the rapid development of the young nations of the United States and Canada. Early immigration and passenger lists have recorded many early immigrants bearing the name of MacGath: Bernard, Bridget, Charles, Denis, Edward, Henry, Hugh, James, John, Mark, Michael, Owen, Patrick, Robert, Thomas McGrath all arrived in Philadelphia between 1840 and 1860.



  1. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)


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