Show ContentsMahoom History, Family Crest & Coats of Arms

In its ancient Gaelic form, the Irish name Mahoom was written Mac Mathghamhna, which later became Mac Mathuna. Both names are derived from the word "mathghamhan," which means "bear."

Early Origins of the Mahoom family

The surname Mahoom was first found in County Clare (Irish: An Clár) located on the west coast of Ireland in the province of Munster, where the MacMahons were lords of Corca Baisgin; and possessed the greater part of the baronies of Moyarta and Clonderlaw. 1

"The Munster MacMahons formerly possessed the greater part of the Baronies of Moyarta and Clonderalaw, in the County Clare, in which county the predominant name now is McMahon." 2

Early History of the Mahoom family

This web page shows only a small excerpt of our Mahoom research. Another 110 words (8 lines of text) covering the years 1119, 1519, 1600, 1606, 1643, 1644, 1650, 1660, 1680, 1707, 1715, 1727, 1737, 1747 and 1780 are included under the topic Early Mahoom History in all our PDF Extended History products and printed products wherever possible.

Mahoom Spelling Variations

One name was often recorded under several different spellings during the life of its bearer because one must realize that attempting to record a Gaelic name in English is a daunting task at the best of times. Spelling variations revealed in the search for the origin of the Mahoom family name include MacMahon, MacMann, MacMahan, MacMohan and others.

Early Notables of the Mahoom family

Notable amongst the family name at this time was Séamus mac Pilib Mac Mathghamhna (died 1519), was Bishop of Derry. Hugh Oge MacMahon (1606-1644), was an Irish conspirator, was probably of Sir Brian MacHugh Oge MacMahon, Lord of the Dartree in the county of Monaghan. Herber MacMahon (1600-1650), Bishop of Clogher in 1643, a Catholic leader, commanded the Ulster...
Another 59 words (4 lines of text) are included under the topic Early Mahoom Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Mahoom family

The 18th and 19th centuries saw many Irish families immigrate to North America in search of land and opportunities. The largest influx of Irish immigrants to the United States and British North America came during the 1840s when the Great Potato Famine laid waste to their homeland. Hundreds of thousands left the island in an attempt to escape the starvation and disease it brought. Although the arrival of such a large number of destitute Irish was not welcomed by the established population in the United States and what would become known as Canada at the time, these Irish were an essential element to the rapid development of these growing industrial nations. They filled the demand for the cheap labor needed for the work in factories and in the construction of bridges, roads, canals, and railways. An examination of passenger and immigration lists has revealed many immigrants bearing the name of Mahoom or one of its variants: Bernard, Francis, James, John, Michael, Patrick MacMahan, who all arrived in Philadelphia, Pennsylvania between 1840 and 1860; Mary McMahan settled in Boston Massachusetts in 1849.



The Mahoom Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Sic nos sic sacra tuemur
Motto Translation: Thus we guard our sacred rights.


  1. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
  2. 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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