How many John Mclaughlin census records do you have?

We have 8479 US Census records for John Mclaughlin, from 1900 to 1950, across 50 states and DC.

What's in a John Mclaughlin census record?

You'll see John's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow John Mclaughlin's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.

Are John Mclaughlin census records free?

Yes. All John Mclaughlin census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover John Mclaughlin?

We have John Mclaughlin records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters to narrow your results.

How do I find John Mclaughlin in the census?

Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.

What is the Model Tree for John Mclaughlin?

The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.

Where does the census data come from?

All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

John Mclaughlin — US Census Records & Model Tree

We found 8479 free census records for John Mclaughlin across 6 census years (1900–1950), in 50 states and DC and 1030 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Mclaughlin Census Records by State & County

Records per state:

Census Record Search

First Name

Middle Name

Last Name (Required)

Census Year

State

Birth Year

Year Range

Birthplace

Age From

Age To

Exact match: Name Location Year

Alternate First Names (comma-separated)

Alternate Last Names (comma-separated)

County

Sex

Marital Status

Race

Relationship to Head

Occupation

Census Page ID

Family Members (in same household)

Search Records

Showing of 8479 records for John Mclaughlin US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	John Mclaughlin		Kings, New York	New York	—	Son
1940	John Mclaughlin	32	Huron-County, Ohio	Ohio	Farmer	Head
1940	John Mclaughlin	48	Ouray-County, Colorado	Colorado	Farmer	Head
1930	John G Mclaughlin		Butler, Ohio	Ohio	—	Son
1920	John D. Mclaughlin		Multnomah, Oregon	Oregon	Machinist	Son
1930	John C Mclaughlin		Essex, New Jersey	New Jersey	—	Son
1940	John F. Mclaughlin	25	Belknap-County, New Hampshire	New Hampshire	Pattern Maker	Head
1930	John Mclaughlin		Kings, New York	Ireland	Investigator	Head
1930	John S Mclaughlin		Venango, Pennsylvania	Pennsylvania	Farmer	Head
1930	John Mclaughlin		Kings, New York	Ireland	Conductor	Head
1910	John Mclaughlin		Providence, Rhode Island	Rhode Island	Salesman	Head
1940	John E. Mclaughlin	43	Richmond-City-County, Virginia	Virginia	Clerk-In-Charge	Head
1940	John Mclaughlin	50	Westchester-County, New York	Ireland	Bookkeeper	Head
1940	John J. Mclaughlin	52	Essex-County, Massachusetts	Scotland	Owner	Head
1900	John Mclaughlin	52	Oneida, New York	Ireland	Farmer	Head
1920	John M. Jr. Mclaughlin		Lucas, Ohio	Michigan	Carpenter	Head
1940	John Mclaughlin	60	Delaware-County, Pennsylvania	England	Carpenter	Head
1940	John E. Mclaughlin	62	Hudson-County, New Jersey	New Jersey	County Clerk	Head
1940	John Mclaughlin	68	Philadelphia-County, Pennsylvania	Pennsylvania	—	Head
1930	John Mclaughlin		Potter, Pennsylvania	Ireland	—	Head
1930	John Mclaughlin		Lackawanna, Pennsylvania	Pennsylvania	Conductor	Head
1940	John J. Mclaughlin	45	Suffolk-County, Massachusetts	Mass	Assistant Registrar-Voters	Head
1930	John Mclaughlin		Philadelphia, Pennsylvania	Ireland	Mechanic	Head
1930	John Mclaughlin		Champaign, Ohio	Ohio	Bookkeeper	Son
1910	John H. Mclaughlin		Pottawatomie, Oklahoma	Oklahoma	—	Son
1910	John Mclaughlin		Suffolk, Massachusetts	Massachusetts	—	Son
1910	John Mclaughlin		Suffolk, Massachusetts	Massachusetts	Superintendent	Head
1940	John Mclaughlin	15	Columbiana-County, Ohio	Ohio	—	Son
1930	John S. Mclaughlin		Summit, Ohio	Pennsylvania	Truck Driver	Son
1940	John F. Mclaughlin	48	Suffolk-County, Massachusetts	Massachusetts	Salesman	Head

Load More John Mclaughlin Census Records

About John Mclaughlin US Census Records & Model Tree

We've indexed 8479 free, proprietary US Census records for John Mclaughlin across 1900–1950, covering 50 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Each record includes our Model Tree — a longitudinal reconstruction that links the same person across census decades using machine learning (XGBoost record linkage). Every link carries a confidence score: Verified (≥0.99), Confirmed (≥0.95), or Linked (lower confidence). This tells you not just what the census says, but how reliably we've connected records across time.

Every record also shows the full household — who John lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.

How we build the Model Tree. YourRoots independently indexes US Census records from NARA microfilm and links persons across decades using XGBoost-based record linkage. Each link's confidence is a per-pair match score from the model. Household corroboration (co-residents appearing on the same census pages in multiple years) strengthens the signal. The Model Tree is not a family tree submitted by users — it's reconstructed from the census data itself.

Last updated: July 30, 2026

Frequently Asked Questions

: We have 8479 US Census records for John Mclaughlin, from 1900 to 1950, across 50 states and DC.
: You'll see John's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.
: Census records are a snapshot of a family every 10 years. You can follow John Mclaughlin's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.
: Yes. All John Mclaughlin census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.
: We have John Mclaughlin records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters above to narrow your results.
: Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.
: The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.
: All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

Other Mclaughlin US Census Records

James Mclaughlin Margaret Mclaughlin Mary Mclaughlin William Mclaughlin

All Mclaughlin census records →

Browse More Surnames

Mcintyre Mckay Mckee Mckenna Mckenzie Mckinney Mclean Mcleod Mcmahon Mcmanus Mcmillan Mcmullen

← Back to US Census Records