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O'mahoney Family History

O'mahoney Surname Meaning

Irish: Anglicized form of Gaelic Ó Mathghamhna ‘descendant of Mathghamhain’ (see Mahoney).

There are two families of this name, in Cork and Ulster, but the Ulster family name was usually Anglicized as McMahon.

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


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Where is the O'mahoney family from?

You can see how O'mahoney families moved over time by selecting different census years. The O'mahoney family name was found in the USA, and Scotland between 1880 and 1920. The most O'mahoney families were found in USA in 1880. In 1891 there were 5 O'mahoney families living in Lanarkshire. This was 100% of all the recorded O'mahoney's in Scotland. Lanarkshire had the highest population of O'mahoney families in 1891.
Use census records and voter lists to see where families with the O'mahoney surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.
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What O'mahoney family records will you find?

Census Records

There are 7,000 census records available for the last name O'mahoney. Like a window into their day-to-day life, O'mahoney census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

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Passenger Lists

There are 2,000 immigration records available for the last name O'mahoney. Passenger lists are your ticket to knowing when your ancestors arrived in the UK, and how they made the journey - from the ship name to ports of arrival and departure.

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Draft Cards

There are 1,000 military records available for the last name O'mahoney. For the veterans among your O'mahoney ancestors, military collections provide insights into where and when they served, and even physical descriptions.

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What is the average O'mahoney lifespan?

Between 1992 and 1995, in the United States, O'mahoney life expectancy was at its lowest point in 1995, and highest in 1992. The average life expectancy for O'mahoney in 1992 was 85, and 61 in 1995.

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

An unusually short lifespan might indicate that your O'mahoney 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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