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Robert Leonard — US Census Records & Model Tree

We found 3891 free census records for Robert Leonard across 6 census years (1900–1950), in 50 states and DC and 914 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Robert Leonard Census Records by State & County

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Family Members (in same household)
Showing of 3891 records for Robert Leonard US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 Robert Leonard 22 New-York-County, New York New York Lamp Fitter Son
1940 Robert Leonard 39 Davidson-County, North Carolina North Carolina Farmer Head
1940 Robert Leonard 21 Linn-County, Kansas Kansas Laborer Son
1940 Robert Leonard 21 Suffolk-County, Massachusetts Massachusetts Laborer Son
1940 Robert Leonard 23 Jefferson-County, Texas Texas Truck Driver Son
1940 Robert C. Q. Leonard 41 Washington-County, Virginia Virginia Machinist Head
1940 Robert Leonard 23 Fayette-County, Indiana Indiana Attendant Son
1940 Robert D. Leonard 22 Philadelphia-County, Pennsylvania Penna Clerk Son
1940 Robert J. Leonard 34 Franklin-County, Ohio Ohio Beer Bottler Head
1930 Robert H. Leonard Providence, Rhode Island Rhode Island Truck Driver Head
1940 Robert Leonard 31 Franklin-County, North Carolina North Carolina Carpenter Head
1940 Robert J. Leonard 41 Windsor-County, Vermont Vermont Plumber Head
1940 Robert L. Leonard 23 Ingham-County, Michigan Michigan Electrical Worker Head
1930 Robert E. Leonard Oklahoma, Oklahoma Texas State Mgr Head
1920 Robert L. Leonard Los Angeles, California Missouri Merchant Head
1940 Robert F. Leonard 56 Westchester-County, New York Massachusetts Treasurer Head
1930 Robert Leonard Addison, Vermont Vermont — Son
1930 Robert F. Leonard Hancock, Ohio Ohio Farmer Head
1930 Robert G. Leonard Prince William, Virginia Virginia Laborer Son
1920 Robert Jr. Leonard Pender, North Carolina North Carolina — Son
1930 Robert Leonard Marion, South Carolina South Carolina — Son
1930 Robert H Leonard Washington, Virginia Virginia Laborer Son
1940 Robert Leonard 17 Washington-County, Virginia Virginia — Son
1940 Robert Leonard 11 Schuyler-County, Illinois Illinois — Son
1930 Robert Leonard Davidson, North Carolina North Carolina Tighter Son
1940 Robert Elbert Leonard 41 Sumter-County, Alabama Alabama Roadbuilder Head
1910 Robert Leonard Luzerne, Pennsylvania Ireland Machinist Head
1940 Robert Leonard 12 Susquehanna-County, Pennsylvania Pennsylvania — Son
1940 Robert Leonard 21 Allen-County, Ohio Ohio Labor Son
1940 Robert Leonard 14 Cook-County, Illinois Illinois — Son

About Robert Leonard US Census Records & Model Tree

We've indexed 3891 free, proprietary US Census records for Robert Leonard 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 Robert 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 3891 US Census records for Robert Leonard, from 1900 to 1950, across 50 states and DC.
You'll see Robert'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 Robert Leonard'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 Robert Leonard 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 Robert Leonard 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.
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