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Ohallahan Family History

Ohallahan Surname Meaning

Historically, surnames evolved as a way to sort people into groups - by occupation, place of origin, clan affiliation, patronage, parentage, adoption, and even physical characteristics (like red hair). Many of the modern surnames in the dictionary can be traced back to Britain and Ireland.


Similar surnames: Hallahan, Callahan, Gallahan, Hollahan, Hanrahan, Hallman, Halligan

Search for a relative to learn more about your family history.

Hint: Try searching for a relative alive in 1940.

Where is the Ohallahan family from?

You can see how Ohallahan families moved over time by selecting different census years. The Ohallahan family name was found in the USA in 1920. In 1920 there was 1 Ohallahan family living in Connecticut. This was 100% of all the recorded Ohallahan's in USA. Connecticut had the highest population of Ohallahan families in 1920.
Use census records and voter lists to see where families with the Ohallahan 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 Ohallahan family records will you find?

Census Records

There are 117 census records available for the last name Ohallahan. Like a window into their day-to-day life, Ohallahan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search UK census records for Ohallahan

Passenger Lists

There are 13 immigration records available for the last name Ohallahan. 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.

View all Ohallahan immigration records

Draft Cards

There are 28 military records available for the last name Ohallahan. For the veterans among your Ohallahan ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Ohallahan military records

You've only scratched the surface of Ohallahan family history

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What is the average Ohallahan lifespan?

Between 1967 and 2004, in the United States, Ohallahan life expectancy was at its lowest point in 1992, and highest in 1999. The average life expectancy for Ohallahan in 1967 was 79, and 77 in 2004.

View Social Security Death Index (SSDI) for Ohallahan

An unusually short lifespan might indicate that your Ohallahan 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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