Mcmahan Family History

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Mcmahan Name Meaning

Irish: variant spelling of McMahon.

Source: Dictionary of American Family Names ©2013, Oxford University Press

Similar surnames: Mcmahen, Mckahan, Mcmakin, Mcmann, Mcmain, Mcmaken, Mcghan, Mchan

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Mcmahan Ethnicity Estimate

What are the common regions with the Mcmahan name?

These results combine data from everyone in the AncestryDNA® database with the last name Mcmahan. The Ancestry® ethnicity regions shown are top five most common on average for these people.

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  • England & Wales


  • Ireland & Scotland


  • Germanic Europe


  • Norway


  • Sweden


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Mcmahan Family Origin

Where is the Mcmahan family from?

Mcmahan Family Occupations

What did your Mcmahan ancestors do for a living?

In 1880, Farmer, Laborer and Keeping House were the top 3 reported jobs worked by Mcmahan. The most common Mcmahan occupation in the USA was Farmer. 35% of Mcmahan's were Farmers. A less common occupation for the Mcmahan family was Farm Laborer.

View Census data for Mcmahan | Data not to scale

  • Farmer

  • Laborer

  • Keeping House

  • Farm Laborer


Census records can tell you a lot of little known facts about your Mcmahan ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

Mcmahan Historical Records

What Mcmahan family records will you find?

Census Record

There are 64,000 census records available for the last name Mcmahan. Like a window into their day-to-day life, Mcmahan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search 1940's US census records for Mcmahan

Passenger List

There are 4,000 immigration records available for the last name Mcmahan. 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 Mcmahan immigration records

Draft Card

There are 14,000 military records available for the last name Mcmahan. For the veterans among your Mcmahan ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Mcmahan military records

You've only scratched the surface of Mcmahan family history.

Mcmahan Life Expectancy

What is the average Mcmahan lifespan?

Between 1942 and 2004, in the United States, Mcmahan life expectancy was at its lowest point in 1945, and highest in 2002. The average life expectancy for Mcmahan in 1942 was 31, and 70 in 2004.

View Social Security Death Index (SSDI) for Mcmahan

An unusually short lifespan might indicate that your Mcmahan ancestors lived in harsh conditions. A short lifespan might also indicate health problems that were once prevalent in your family. The SSDI is a searchable database of more than 70 million names. You can find birthdates, death dates, addresses and more.

Famous Mcmahan Family Ancestors

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