History of your Surname
Get access to Deffily family records.Start a free trial

Deffily Family History

Deffily Name 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: Deily, Jeffrey, Duffy, Duffin, Reffitt, Doffing, Delfino, Offill

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

Hint: Try searching for a relative alive in 1940.

Black & white image of a young woman scientist

Where is the Deffily family from?

You can see how Deffily families moved over time by selecting different census years. The Deffily family name was found in the USA in 1920. In 1920 there were 2 Deffily families living in New Jersey. This was 100% of all the recorded Deffily's in USA. New Jersey had the highest population of Deffily families in 1920.
Use census records and voter lists to see where families with the Deffily surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Deffily ancestors do for a living?

Census records can tell you a lot of little known facts about your Deffily ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

What Deffily family records will you find?

Census Records

There are 116 census records available for the last name Deffily. Like a window into their day-to-day life, Deffily census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for Deffily

Passenger Lists

There are 30 immigration records available for the last name Deffily. 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 Deffily immigration records

Draft Cards

There are 54 military records available for the last name Deffily. For the veterans among your Deffily ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Deffily military records

You've only scratched the surface of Deffily family history

Discover More

What is the average Deffily lifespan?

Between 1964 and 2003, in the United States, Deffily life expectancy was at its lowest point in 1969, and highest in 1973. The average life expectancy for Deffily in 1964 was 84, and 88 in 2003.

View Social Security Death Index (SSDI) for Deffily

Discover the unique achievements of ancestors in the Deffily family tree

Explore Your Tree

Browse profiles of historical people with the Deffily last name

Search for another surname
Enter last name/surname
Start a 14-Day Free Trial