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

Mcwilliams Family History

Mcwilliams Name Meaning

Irish (northern): Anglicized form of Gaelic Mac Uilleim a patronymic from a Gaelicized form of William with excrescent English -s. In Ireland it sometimes represents a partial Gaelicization of Welsh Williams .

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

Similar surnames: Mcwilliam, Mcphillips, Guilliams, Mckellips, Williams, Mcquillan

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 Mcwilliams family from?

You can see how Mcwilliams families moved over time by selecting different census years. The Mcwilliams family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Mcwilliams families were found in USA in 1880. In 1840 there were 82 Mcwilliams families living in Pennsylvania. This was about 26% of all the recorded Mcwilliams's in USA. Pennsylvania had the highest population of Mcwilliams families in 1840.
Use census records and voter lists to see where families with the Mcwilliams surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your Mcwilliams ancestors do for a living?

In 1940, Farmer and Stenographer were the top reported jobs for men and women in the USA named Mcwilliams. 18% of Mcwilliams men worked as a Farmer and 8% of Mcwilliams women worked as a Stenographer. Some less common occupations for Americans named Mcwilliams were Truck Driver and Housekeeper. .

View Census Data for Mcwilliams | 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

  • Farmer
  • Laborer
  • Salesman
  • Truck Driver

Top Female Occupations In 1940

  • Stenographer
  • Teacher
  • Housewife
  • Housekeeper
Black & white image of two construction labourers

What Mcwilliams family records will you find?

Census Records

There are 88,000 census records available for the last name Mcwilliams. Like a window into their day-to-day life, Mcwilliams census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search US census records for Mcwilliams

Passenger Lists

There are 11,000 immigration records available for the last name Mcwilliams. 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 Mcwilliams immigration records

Draft Cards

There are 20,000 military records available for the last name Mcwilliams. For the veterans among your Mcwilliams ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Mcwilliams military records

You've only scratched the surface of Mcwilliams family history

Discover More

What is the average Mcwilliams lifespan?

Between 1943 and 2004, in the United States, Mcwilliams life expectancy was at its lowest point in 1944, and highest in 1999. The average life expectancy for Mcwilliams in 1943 was 32, and 75 in 2004.

View Social Security Death Index (SSDI) for Mcwilliams

Discover the unique achievements of ancestors in the Mcwilliams family tree

Explore Your Tree
Search for another surname
Start a 14-Day Free Trial