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James Mcmanus — US Census Records & Model Tree

We found 3355 free census records for James Mcmanus across 6 census years (1900–1950), in 47 states and DC and 585 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Mcmanus Census Records by State & County

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Showing of 3355 records for James Mcmanus US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1930 James Mcmanus Philadelphia, Pennsylvania Pennsylvania Mechanic Son
1940 James Mcmanus 25 Luzerne-County, Pennsylvania Pennsylvania Laborer Son
1940 James Mcmanus 40 Essex-County, Massachusetts Massachusetts Lumber Buyer Son
1940 James B. Mcmanus 51 Jackson-County, Louisiana Alabama Farmer Head
1920 James Mcmanus Philadelphia, Pennsylvania Ireland Laborer Head
1930 James D. Mcmanus Whitman, Washington Ohio Lawyer Head
1920 James J. Mcmanus Essex, New Jersey Ireland Real Estate Head
1940 James C. Mcmanus 13 Buchanan-County, Missouri Missouri — Son
1930 James Sr Mcmanus Luzerne, Pennsylvania England Miner Head
1940 James Mcmanus 18 Taylor-County, Wisconsin Wisconsin Farm Laborer Son
1940 James H. Mcmanus 23 Essex-County, Massachusetts Massachusetts Laborer Son
1940 James Jr. Mcmanus 23 Luzerne-County, Pennsylvania Pennsylvania New Worker Son
1940 James P Mcmanus 24 Middlesex-County, Massachusetts Massachusetts — Son
1940 James Mcmanus 11 Dade-County, Missouri Missouri — Son
1940 James J. Mcmanus 12 Schuylkill-County, Pennsylvania Pennsylvania — Son
1920 James P. Mcmanus Cook, Illinois Illinois — Son
1910 James Mcmanus Westmoreland, Pennsylvania Ireland Miner Head
1930 James Mcmanus Union, North Carolina North Carolina — Son
1940 James Mcmanus 45 Edgefield-County, South Carolina South Carolina — Son
1910 James Mcmanus Queens, New York Ireland Laborer Head
1940 James Mcmanus 21 Middlesex-County, Massachusetts Massachusetts 48 Son
1910 James Mcmanus X, Missouri Ireland Laborer Head
1920 James Mcmanus Texas, Oklahoma Oklahoma None Son
1930 James Mcmanus Wayne, Michigan Michigan — Son
1920 James Mcmanus Kings, New York Ireland Laborer Head
1940 James Mcmanus 32 New-York-County, New York New York Elevator Operator Son
1920 James Mcmanus New York, New York New York Student Son
1930 James Mcmanus New York, New York Ireland Night Porter Head
1940 James Mcmanus 14 Kings-County, New York New York — Son
1940 James Mcmanus 15 Fayette-County, Pennsylvania Pennsylvania — Son

About James Mcmanus US Census Records & Model Tree

We've indexed 3355 free, proprietary US Census records for James Mcmanus across 1900–1950, covering 47 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, 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 James 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 3355 US Census records for James Mcmanus, from 1900 to 1950, across 47 states and DC.
You'll see James'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 James Mcmanus'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 James Mcmanus 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 James Mcmanus records from the 1900 through 1950 US Federal Census, across 47 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.
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