Kilroy Family History

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Kilroy Name Meaning

Irish: Anglicized form of Gaelic Mac Giolla Ruaidh ‘son of the red-haired lad’. Compare Roy 1.

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

Similar surnames: Gilroy, Kilday, Milloy, Gilboy, Mulroy, Kirby, Kielty, Milroy, Kildow

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Kilroy Ethnicity Estimate

What are the common regions with the Kilroy name?

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

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  • Ireland & Scotland


  • England & Wales


  • France


  • Germanic Europe


  • Eastern Europe & Russia


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Kilroy Family Origin

Where is the Kilroy family from?

Kilroy Family Occupations

What did your Kilroy ancestors do for a living?

In 1881, the most common Kilroy occupation in Canada was Farmer. 28% of Kilroy's were Farmers. A less common occupation for the Kilroy family was Merchant. Farmer, Dress Maker and Going To School were the top 3 reported jobs worked by Kilroy.

View Census data for Kilroy | Data not to scale

  • Farmer

  • Dress Maker

  • Going To School

  • Merchant


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

Kilroy Historical Records

What Kilroy family records will you find?

Census Record

There are 20,000 census records available for the last name Kilroy. Like a window into their day-to-day life, Kilroy census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search 1881 Canadian census records for Kilroy

Passenger List

There are 4,000 immigration records available for the last name Kilroy. Passenger lists are your ticket to knowing when your ancestors arrived in Canada, and how they made the journey - from the ship name to ports of arrival and departure.

View all Kilroy immigration records

Draft Card

There are 4,000 military records available for the last name Kilroy. For the veterans among your Kilroy ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Kilroy military records

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

Kilroy Life Expectancy

What is the average Kilroy lifespan?

Between 1943 and 2004, in the United States, Kilroy life expectancy was at its lowest point in 1943, and highest in 2004. The average life expectancy for Kilroy in 1943 was 38, and 81 in 2004.

View Social Security Death Index (SSDI) for Kilroy

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

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