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O'neil Family History

O'neil Name Meaning

Irish: variant of O’Neill.

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

Similar surnames: O'neal, O'neel, Odneal, O'neall, O'neill, Neil, Mcneill, O'bear

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Where is the O'neil family from?

You can see how O'neil families moved over time by selecting different census years. The O'neil family name was found in the USA, the UK, Canada, and Scotland between 1841 and 1920. The most O'neil families were found in USA in 1880. In 1880 there were 2,061 O'neil families living in New York. This was about 24% of all the recorded O'neil's in USA. New York had the highest population of O'neil families in 1880.
Use census records and voter lists to see where families with the O'neil surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your O'neil ancestors do for a living?

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

What O'neil family records will you find?

Census Records

There are 282,000 census records available for the last name O'neil. Like a window into their day-to-day life, O'neil census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for O'neil

Passenger Lists

There are 41,000 immigration records available for the last name O'neil. 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.

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Draft Cards

There are 50,000 military records available for the last name O'neil. For the veterans among your O'neil ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all O'neil military records

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What is the average O'neil lifespan?

Between 1992 and 2004, in the United States, O'neil life expectancy was at its lowest point in 1996, and highest in 2003. The average life expectancy for O'neil in 1992 was 61, and 45 in 2004.

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

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