How many John Mclean census records do you have?

We have 8996 US Census records for John Mclean, from 1900 to 1950, across 50 states and DC.

What's in a John Mclean 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 Mclean'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 Mclean census records free?

Yes. All John Mclean 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 Mclean?

We have John Mclean 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 Mclean 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 Mclean?

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 Mclean — US Census Records & Model Tree

We found 8996 free census records for John Mclean across 6 census years (1900–1950), in 50 states and DC and 1417 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Mclean Census Records by State & County

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Showing of 8996 records for John Mclean US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John B Mclean	52	Newport-County, Rhode Island	Rhode Island	Assistant Treasurer	Head
1930	John R Mclean		Rice, Minnesota	Minnesota	Bookkeeper	Son
1940	John Mclean	21	Cumberland-County, North Carolina	North Carolina	Delivery Boy	Son
1930	John Mclean		New York, New York	New York	—	Son
1940	John A. W. Mclean	48	Robeson-County, North Carolina	North Carolina	Farmer	Head
1940	John Mclean	59	Hudson-County, New Jersey	Scotland	Stone Cutter	Head
1930	John Mclean		Philadelphia, Pennsylvania	Scotland	Shipper	Head
1900	John Mclean	60	Middlesex, Massachusetts	Maine	—	Head
1930	John Mclean		Queens, New York	Scotland	Guard	Head
1940	John R. Mclean	71	Grayson-County, Virginia	Virginia	Farmer	Head
1940	John R Mclean	60	Middlesex-County, Massachusetts	Nova Scotia	Police Officer	Head
1920	John Mclean		King, Washington	Scotland	—	Head
1920	John Mclean		Middlesex, Massachusetts	Scotland	Road Master	Head
1930	John Mclean		Morgan, Illinois	Illinois	—	Son
1910	John Mclean		Kemper, Mississippi	Mississippi	Laborer	Son
1940	John A. Mclean	52	Harnett-County, North Carolina	North Carolina	Farmer	Head
1940	John A. Mclean	18	Harnett-County, North Carolina	North Carolina	Farm Laborer	Son
1930	John Mclean		Queens, New York	New York	Laborer	Son
1940	John D. Mclean	44	Harnett-County, North Carolina	North Carolina	Farmer	Head
1940	John M Mclean	55	Wayne-County, Michigan	Canada-Eng	Broker	Head
1930	John S. Mclean		Harnett, North Carolina	North Carolina	—	Son
1910	John Mclean		Barbour, Alabama	Alabama	Farmer	Head
1940	John A Mclean	23	Wayne-County, Michigan	Michigan	Machine Opr	Son
1930	John Mclean		Marlboro, South Carolina	South Carolina	Farmer	Head
1930	John Mclean		Middlesex, Massachusetts	Massachusetts	None	Son
1940	John W. Mclean	15	Scotland-County, North Carolina	North Carolina	—	Son
1910	John J Mclean		Robeson, North Carolina	North Carolina	General Farm	Son
1940	John Mclean	45	Williamsburg-County, South Carolina	South Carolina	Farmer	Head
1910	John H Mclean		Robeson, North Carolina	North Carolina	Farmer	Head
1910	John S. Mclean		Essex, New York	New York	Farmer	Head

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About John Mclean US Census Records & Model Tree

We've indexed 8996 free, proprietary US Census records for John Mclean 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 8996 US Census records for John Mclean, 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 Mclean'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 Mclean 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 Mclean 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 Mclean US Census Records

George Mclean James Mclean Margaret Mclean Mary Mclean Robert Mclean William Mclean

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