O'brien Family History

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O'brien Name Meaning

Irish: Anglicized form of Gaelic Ó Briain ‘descendant of Brian’, a personal name probably based on the element bre- ‘hill’, with the transferred sense ‘eminence’, i.e. ‘exalted one’. See also Bryan. In Ireland there has also been some confusion with O’Byrne (see Byrne).

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

Similar surnames: Mcbrien, Brian, Mcbreen, O'quinn, O'beirne, Breen, Brien, O'banion

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O'brien Family Origin

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O'brien Family Occupations

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

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O'brien Historical Records

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Census Record

There are 1 million census records available for the last name O'brien. Like a window into their day-to-day life, O'brien census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

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Passenger List

There are 199,000 immigration records available for the last name O'brien. 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.

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Draft Card

There are 183,000 military records available for the last name O'brien. For the veterans among your O'brien ancestors, military collections provide insights into where and when they served, and even physical descriptions.

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O'brien Life Expectancy

What is the average O'brien lifespan?

Between 1991 and 2004, in the United States, O'brien life expectancy was at its lowest point in 1993, and highest in 1991. The average life expectancy for O'brien in 1991 was 71, and 61 in 2004.

View Social Security Death Index (SSDI) for O'brien

An unusually short lifespan might indicate that your O'brien 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.

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