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Grennan Family History

Grennan Name Meaning

English (Lancashire of Norman origin): nickname for a man with a moustache from Old French gernon grenon ‘moustache’. Irish (Offaly Westmeath and Down): shortened Anglicized form of Gaelic Ó Grianáin (see Greenan ).

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


Similar surnames: Greenan, Grannan, Drennan, Brennan, Glennon, Ronan, Neenan, German

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

Hint: Try searching for a relative alive in 1940.

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Where is the Grennan family from?

You can see how Grennan families moved over time by selecting different census years. The Grennan family name was found in the USA, the UK, Canada, and Scotland between 1841 and 1920. The most Grennan families were found in USA in 1920. In 1891 there were 24 Grennan families living in Lancashire. This was about 47% of all the recorded Grennan's in United Kingdom. Lancashire had the highest population of Grennan families in 1891.
Use census records and voter lists to see where families with the Grennan surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Grennan ancestors do for a living?

In 1939, General Labourer and Unpaid Domestic Duties were the top reported jobs for men and women in the United Kingdom named Grennan. 75% of Grennan men worked as a General Labourer and 89% of Grennan women worked as an Unpaid Domestic Duties. Some less common occupations for Americans named Grennan were Farm Labourer (heavy Worker) and Pensioner. .

View Census Data for Grennan | 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.

Top Male Occupations In 1939

  • General Labourer
    75%
  • Farm Labourer (heavy Worker)
    25%

Top Female Occupations In 1939

  • Unpaid Domestic Duties
    89%
  • Pensioner
    12%
Black & white image of two construction labourers

What Grennan family records will you find?

Census Records

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

Search UK census records for Grennan

Passenger Lists

There are 1,000 immigration records available for the last name Grennan. 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 Grennan immigration records

Draft Cards

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

View all Grennan military records

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What is the average Grennan lifespan?

Between 1957 and 2004, in the United States, Grennan life expectancy was at its lowest point in 1960, and highest in 1986. The average life expectancy for Grennan in 1957 was 60, and 75 in 2004.

View Social Security Death Index (SSDI) for Grennan

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