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Ocallahan Family History

Ocallahan Surname Meaning

Irish: Anglicized form of Ó Ceallacháin (see Callahan).

Source: Dictionary of American Family Names 2nd edition, 2022


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Where is the Ocallahan family from?

You can see how Ocallahan families moved over time by selecting different census years. The Ocallahan family name was found in the USA, the UK, and Canada between 1840 and 1920. The most Ocallahan families were found in USA in 1920. In 1891 there were 5 Ocallahan families living in Lancashire. This was about 50% of all the recorded Ocallahan's in United Kingdom. Lancashire had the highest population of Ocallahan families in 1891.
Use census records and voter lists to see where families with the Ocallahan 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 did your Ocallahan ancestors do for a living?

In 1940, Clerk and Stenographer were the top reported jobs for men and women in the USA named Ocallahan. 45% of Ocallahan men worked as a Clerk and 60% of Ocallahan women worked as a Stenographer. Some less common occupations for Americans named Ocallahan were Elevator Operator and Maid.

View Census Data for Ocallahan | Data not to scale

*We display top occupations by gender to maintain their historical accuracy during times when men and women often performed different jobs.

United States shown, England data unavailable

Top Male Occupations In 1940

  • Clerk
    45%
  • Laborer
    34%
  • Elevator Operator
    23%

Top Female Occupations In 1940

  • Stenographer
    60%
  • Maid
    40%

What Ocallahan family records will you find?

Census Records

There are 4,000 census records available for the last name Ocallahan. Like a window into their day-to-day life, Ocallahan census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search UK census records for Ocallahan

Passenger Lists

There are 900 immigration records available for the last name Ocallahan. 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 Ocallahan immigration records

Draft Cards

There are 744 military records available for the last name Ocallahan. For the veterans among your Ocallahan ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Ocallahan military records

You've only scratched the surface of Ocallahan family history

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What is the average Ocallahan lifespan?

Between 1955 and 2004, in the United States, Ocallahan life expectancy was at its lowest point in 1955, and highest in 1998. The average life expectancy for Ocallahan in 1955 was 43, and 76 in 2004.

View Social Security Death Index (SSDI) for Ocallahan

An unusually short lifespan might indicate that your Ocallahan 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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