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Robert Mccormick — US Census Records & Model Tree

We found 3097 free census records for Robert Mccormick across 6 census years (1900–1950), in 49 states and DC and 804 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Robert Mccormick Census Records by State & County

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Showing of 3097 records for Robert Mccormick US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1930 Robert Mccormick Carter, Kentucky Kentucky Farmer Head
1940 Robert Mccormick 37 Kenton-County, Kentucky Kentucky Laborer Head
1930 Robert S. Mccormick Rockbridge, Virginia Virginia Mechanic Head
1940 Robert Mccormick 30 Queens-County, New York New York Patrolman Head
1940 Robert Mccormick 25 Kent-County, Rhode Island Rhode Island Bookkeeper Son
1940 Robert L Mccormick 22 Clinton-County, Iowa Iowa — Son
1940 Robert Mccormick 25 Union-County, New Jersey New Jersey Die Casting Son
1940 Robert Mccormick 23 Silver-Bow-County, Montana Montana Houseman Son
1940 Robert J. Mccormick 56 Indiana-County, Pennsylvania Pennsylvania Farmer Head
1920 Robert L Mccormick Adams, Illinois Indiana Laborer Head
1940 Robert H. Mccormick 45 Hamilton-County, Ohio Virginia Employer Head
1940 Robert D. Mccormick 72 Massac-County, Illinois Illinois Old Age Assistance Head
1940 Robert Mccormick 62 Macoupin-County, Illinois Illinois Retired Head
1930 Robert F. Mccormick Providence, Rhode Island Rhode Island Weaver Head
1930 Robert Mccormick New York, New York New York — Son
1930 Robert Mccormick Ramsey, Minnesota Minnesota — Son
1940 Robert Mccormick 26 Harnett-County, North Carolina North Carolina Farm Helper Son
1900 Robert Mccormick 16 Franklin, Ohio Ohio Apprentice - Plumber Son
1940 Robert Mccormick 16 Allegheny-County, Pennsylvania Pennsylvania New Worker Son
1940 Robert G Mccormick 16 Benton-County, Iowa Iowa — Son
1940 Robert Mccormick 29 Suffolk-County, Massachusetts Massachusetts Electrician Helper Head
1930 Robert Mccormick Montgomery, Ohio Ohio — Son
1940 Robert Mccormick 13 Summit-County, Ohio Ohio — Son
1910 Robert B Mccormick Randolph, Alabama Alabama Farmer Head
1940 Robert L Mccormick 20 Dickinson-County, Iowa Iowa Labor Son
1940 Robert J. Mccormick 15 York-County, Nebraska Nebraska — Son
1930 Robert Mccormick Juab, Utah Utah — Son
1930 Robert J. Mccormick Columbia, Wisconsin Wisconsin — Son
1940 Robert Jr. Mccormick 19 Henderson-County, Kentucky Kentucky — Son
1940 Robert F. Mccormick 37 Dane-County, Wisconsin Wisconsin Barber Head

About Robert Mccormick US Census Records & Model Tree

We've indexed 3097 free, proprietary US Census records for Robert Mccormick 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, 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 3097 US Census records for Robert Mccormick, from 1900 to 1950, across 49 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 Mccormick'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 Mccormick 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 Mccormick 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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