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Fennessy Family History

Fennessy Name Meaning

Irish: shortened Anglicized form of Gaelic Ó Fionnghusa ‘descendant of Fionnghus’ a personal name composed of the elements fionn ‘fair white’ + gus ‘vigor force’.

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

Similar surnames: Hennessy, Finnerty, Fennell, Dennehy, Kennedy, Feeney, Hennelly

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Hint: Try searching for a relative alive in 1940.

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Where is the Fennessy family from?

You can see how Fennessy families moved over time by selecting different census years. The Fennessy family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Fennessy families were found in USA in 1920. In 1840 there was 1 Fennessy family living in Pennsylvania. This was 100% of all the recorded Fennessy's in USA. Pennsylvania had the highest population of Fennessy families in 1840.
Use census records and voter lists to see where families with the Fennessy surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Fennessy ancestors do for a living?

In 1940, Laborer and Teacher were the top reported jobs for men and women in the USA named Fennessy. 22% of Fennessy men worked as a Laborer and 20% of Fennessy women worked as a Teacher. Some less common occupations for Americans named Fennessy were New Worker and Housework. .

View Census Data for Fennessy | 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
  • Clerk
  • Salesman
  • New Worker

Top Female Occupations In 1940

  • Teacher
  • Clerk
  • New Worker
  • Housework
Black & white image of two construction labourers

What Fennessy family records will you find?

Census Records

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

Search US census records for Fennessy

Passenger Lists

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

Draft Cards

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

View all Fennessy military records

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What is the average Fennessy lifespan?

Between 1949 and 2004, in the United States, Fennessy life expectancy was at its lowest point in 1977, and highest in 1997. The average life expectancy for Fennessy in 1949 was 54, and 74 in 2004.

View Social Security Death Index (SSDI) for Fennessy

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