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Mcmahon Family History

Mcmahon Name Meaning

Irish: Anglicized form of Gaelic Mac Mathghamhna a patronymic from the byname Mathghamhain literally meaning ‘good calf’ a kenning for ‘bear’. This was the name of two (unrelated) chieftain families in counties Clare (Thomond) and Monaghan (the kingdom of Oriel). See also Mahon 1 and Mahoney . In northern Ireland it is sometimes Anglicized as Matthews since Matha was the Irish form of the Biblical name (see McMath ). In Scotland Matheson was used to translate both of these surnames.

Source: Dictionary of American Family Names 2nd edition, 2022


Similar surnames: Mccahon, Mahon, Mcgahan, Mcelhone, Monahan, Mclaren, Mcmahill

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Hint: Try searching for a relative alive in 1940.

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Where is the Mcmahon family from?

You can see how Mcmahon families moved over time by selecting different census years. The Mcmahon family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Mcmahon families were found in USA in 1880. In 1840 there were 31 Mcmahon families living in New York. This was about 22% of all the recorded Mcmahon's in USA. New York had the highest population of Mcmahon families in 1840.
Use census records and voter lists to see where families with the Mcmahon surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Mcmahon ancestors do for a living?

In 1940, Laborer and Stenographer were the top reported jobs for men and women in the USA named Mcmahon. 12% of Mcmahon men worked as a Laborer and 10% of Mcmahon women worked as a Stenographer. Some less common occupations for Americans named Mcmahon were Farmer and Secretary. .

View Census Data for Mcmahon | Data not to scale

*We display top occupations by gender to maintain their historical accuracy during times when men and women often performed different jobs.

Top Male Occupations In 1940

  • Laborer
    12%
  • Salesman
    7%
  • Clerk
    6%
  • Farmer
    6%

Top Female Occupations In 1940

  • Stenographer
    10%
  • Teacher
    8%
  • Clerk
    8%
  • Secretary
    6%
Black & white image of two construction labourers

What Mcmahon family records will you find?

Census Records

There are 302,000 census records available for the last name Mcmahon. Like a window into their day-to-day life, Mcmahon census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for Mcmahon

Passenger Lists

There are 59,000 immigration records available for the last name Mcmahon. Passenger lists are your ticket to knowing when your ancestors arrived in the USA, and how they made the journey - from the ship name to ports of arrival and departure.

View all Mcmahon immigration records

Draft Cards

There are 54,000 military records available for the last name Mcmahon. For the veterans among your Mcmahon ancestors, military collections provide insights into where and when they served, and even physical descriptions.

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What is the average Mcmahon lifespan?

Between 1941 and 2004, in the United States, Mcmahon life expectancy was at its lowest point in 1941, and highest in 2004. The average life expectancy for Mcmahon in 1941 was 36, and 77 in 2004.

View Social Security Death Index (SSDI) for Mcmahon

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