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Dennehy Family History

Dennehy Name Meaning

Irish (Cork and Kerry): either an Anglicized form of Gaelic Ó Duineachdha ‘descendant of Duineachaidh’ a personal name meaning ‘humane’.

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

Similar surnames: Kennedy, Denny, Downey, Deeney, Dennen, Fennessy, Benney, Dennett

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 Dennehy family from?

You can see how Dennehy families moved over time by selecting different census years. The Dennehy family name was found in the USA, the UK, Canada, and Scotland between 1861 and 1920. The most Dennehy families were found in USA in 1920. In 1880 there were 28 Dennehy families living in Massachusetts. This was about 44% of all the recorded Dennehy's in USA. Massachusetts had the highest population of Dennehy families in 1880.
Use census records and voter lists to see where families with the Dennehy surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Dennehy ancestors do for a living?

In 1940, Laborer and Teacher were the top reported jobs for men and women in the USA named Dennehy. 16% of Dennehy men worked as a Laborer and 12% of Dennehy women worked as a Teacher. Some less common occupations for Americans named Dennehy were Machinist and Clerk. .

View Census Data for Dennehy | 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 1940

  • Laborer
  • Salesman
  • Clerk
  • Machinist

Top Female Occupations In 1940

  • Teacher
  • Stenographer
  • Bookkeeper
  • Clerk
Black & white image of two construction labourers

What Dennehy family records will you find?

Census Records

There are 12,000 census records available for the last name Dennehy. Like a window into their day-to-day life, Dennehy census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for Dennehy

Passenger Lists

There are 3,000 immigration records available for the last name Dennehy. 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.

View all Dennehy immigration records

Draft Cards

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

View all Dennehy military records

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What is the average Dennehy lifespan?

Between 1952 and 2004, in the United States, Dennehy life expectancy was at its lowest point in 1961, and highest in 1998. The average life expectancy for Dennehy in 1952 was 60, and 73 in 2004.

View Social Security Death Index (SSDI) for Dennehy

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