Lonergan Family History

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Lonergan Name Meaning

Irish (Munster): reduced Anglicized form of Gaelic Ó Longargáin, from lonn ‘strong’ + garg ‘fierce’ + the diminutive suffix án.

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

Similar surnames: Londergan, Donegan, Lundergan, Logan, Landrigan, Linehan, Donelan

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Lonergan Ethnicity Estimate

What are the common regions with the Lonergan name?

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

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  • Ireland & Scotland


  • England & Wales


  • Germanic Europe


  • France


  • Eastern Europe & Russia


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Lonergan Family Origin

Where is the Lonergan family from?

Lonergan Family Occupations

What did your Lonergan ancestors do for a living?

In 1880, the most common Lonergan occupation in the USA was Farmer. 15% of Lonergan's were Farmers. Farmer, Laborer and Keeping House were the top 3 reported jobs worked by Lonergan. A less common occupation for the Lonergan family was Carpenter.

View Census data for Lonergan | Data not to scale

  • Farmer

  • Laborer

  • Keeping House

  • Carpenter


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

Lonergan Historical Records

What Lonergan family records will you find?

Census Record

There are 38,000 census records available for the last name Lonergan. Like a window into their day-to-day life, Lonergan 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 Lonergan

Passenger List

There are 6,000 immigration records available for the last name Lonergan. 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 Lonergan immigration records

Draft Card

There are 5,000 military records available for the last name Lonergan. For the veterans among your Lonergan ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Lonergan military records

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

Lonergan Life Expectancy

What is the average Lonergan lifespan?

Between 1947 and 2004, in the United States, Lonergan life expectancy was at its lowest point in 1947, and highest in 1997. The average life expectancy for Lonergan in 1947 was 37, and 76 in 2004.

View Social Security Death Index (SSDI) for Lonergan

An unusually short lifespan might indicate that your Lonergan 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 Lonergan Family Ancestors

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