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John Shannon — US Census Records & Model Tree

We found 4861 free census records for John Shannon across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 990 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Shannon Census Records by State & County

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Family Members (in same household)
Showing of 4861 records for John Shannon US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 John W Shannon 40 Logan-County, Kentucky Kentucky Farmer Head
1940 John E. Shannon 39 Wexford-County, Michigan Michigan Farmer Son
1920 John Shannon Middlesex, Massachusetts Ireland Laborer Head
1940 John W. Shannon 89 Wexford-County, Michigan Ohio — Head
1930 John Shannon Matagorda, Texas Texas Truckman Head
1920 John J. Shannon New Castle, Delaware Delaware Pipe Fitter Son
1940 John E. Shannon 47 Pembina-County, North Dakota North Dakota Farmer Head
1900 John C Shannon 47 Wyoming, West Virginia West Virginia Farmer Head
1940 John H. Shannon 47 Monroe-County, Georgia Georgia Share Cropper Head
1940 John Shannon 58 Baltimore-City-County, Maryland Ireland Motorman Head
1930 John Shannon Leflore, Mississippi Mississippi Farmer Head
1940 John B. Shannon 13 Floyd-County, Iowa Iowa — Son
1940 John H. Shannon 21 Monroe-County, Georgia Georgia Day Laborer Son
1940 John B. Shannon 10 Laurens-County, Georgia Georgia — Son
1920 John Shannon Lee, Mississippi Mississippi Farmer Head
1930 John S Shannon Pottawattamie, Iowa West Virginia Car Repairman Head
1940 John H. Shannon 40 Tift-County, Georgia Georgia Farm Head
1940 John Shannon 53 Suffolk-County, Massachusetts Irish Free State Stationary Fireman Head
1910 John J. Shannon Providence, Rhode Island Rhode Island Sexton Head
1910 John E. Shannon Providence, Rhode Island Rhode Island Butcher Son
1940 John E. Jr. Shannon 13 Milwaukee-County, Wisconsin Wisconsin — Son
1920 John Shannon Cuyahoga, Ohio Ohio — Son
1940 John H. Shannon 14 Maricopa-County, Arizona Georgia — Son
1940 John Shannon 17 Kenosha-County, Wisconsin Wisconsin — Son
1930 John C Shannon Cuyahoga, Ohio Ohio Painter Head
1910 John Shannon New York, New York Ireland Cabinet Head
1940 John W. Shannon 39 Maricopa-County, Arizona New York Farmer Head
1910 John Shannon Passaic, New Jersey Ireland Weaver Head
1930 John W. Shannon Ramsey, Minnesota Minnesota — Son
1910 John Shannon Passaic, New Jersey Ireland Watchman Head

About John Shannon US Census Records & Model Tree

We've indexed 4861 free, proprietary US Census records for John Shannon across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, 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, Puerto Rico, 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 4861 US Census records for John Shannon, from 1900 to 1950, across 49 states, DC, and 1 territory.
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 Shannon'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 Shannon 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 Shannon records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. 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.
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