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Harry Cooper — US Census Records & Model Tree

We found 4071 free census records for Harry Cooper across 6 census years (1900–1950), in 49 states and DC and 900 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Harry Cooper Census Records by State & County

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Family Members (in same household)
Showing of 4071 records for Harry Cooper US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 Harry Cooper 52 Henry-County, Iowa Iowa Farmer Head
1940 Harry Cooper 41 Essex-County, New Jersey New Jersey Moulder Head
1940 Harry Cooper 36 Hudson-County, New Jersey New Jersey Restaurant Head
1910 Harry S. Cooper Butler, Pennsylvania Pennsylvania — Son
1940 Harry Cooper 28 Williamsburg-County, South Carolina South Carolina Farmer Head
1930 Harry Jr. Cooper Lee, Alabama Alabama — Son
1940 Harry J. Cooper 30 Davidson-County, Tennessee Tennessee Driller Head
1920 Harry Cooper Wayne, Michigan Michigan None Son
1940 Harry Cooper 39 New-York-County, New York Georgia Travel Salesman Son
1940 Harry E Cooper 43 Montrose-County, Colorado Colorado Truck Driver Head
1930 Harry Cooper New York, New York Russia Clerk Head
1930 Harry A Cooper Baltimore, Maryland Maryland Laborer Son
1930 Harry Cooper Philadelphia, Pennsylvania Minnesota Clerk Son
1930 Harry Cooper Philadelphia, Pennsylvania Russia Baker Head
1930 Harry N. Cooper Coconino, Arizona California Teller Son
1940 Harry C. Cooper 44 Linn-County, Iowa Nebraska Shipping Clerk Head
1940 Harry Cooper 27 Kings-County, New York New York Tel. Lineman Son
1940 Harry Cooper 26 Allegheny-County, Pennsylvania Pennsylvania Clerk Son
1920 Harry E. Cooper Dauphin, Pennsylvania Pennsylvania Asst Foreman Son
1930 Harry Cooper Philadelphia, Pennsylvania Pennsylvania Mechanic Head
1920 Harry W. Cooper Lewis, Washington Washington Auto Mechanic Son
1900 Harry Cooper 35 New York, New York Russia Al Head
1930 Harry Cooper Lee, Alabama Alabama Farmer Head
1940 Harry (X) Cooper 53 Philadelphia-County, Pennsylvania Russia Dealer Head
1940 Harry T. Cooper 55 Baltimore-County, Maryland Maryland Painter Head
1940 Harry Cooper 48 Bronx-County, New York Russia Painter Head
1940 Harry W. Cooper 47 Butler-County, Pennsylvania Pennsylvania Farmer Head
1940 Harry J. Cooper 51 Jackson-County, Michigan Michigan Stationary Engineer Head
1930 Harry O Cooper Madison, Indiana Indiana Machinist Head
1940 Harry Cooper 55 Mendocino-County, California Oregon Locomotive Engineer Head

About Harry Cooper US Census Records & Model Tree

We've indexed 4071 free, proprietary US Census records for Harry Cooper across 1900–1950, covering 49 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, 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 Harry 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 4071 US Census records for Harry Cooper, from 1900 to 1950, across 49 states and DC.
You'll see Harry'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 Harry Cooper'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 Harry Cooper 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 Harry Cooper records from the 1900 through 1950 US Federal Census, across 49 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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