Ole Olson — US Census Records & Model Tree
We found 5279 free census records for Ole Olson across 6 census years (1900–1950), in 41 states and 628 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.
Ole Olson Census Records by State & County
Census Record Search
| Year | Name | Age | Location | Birthplace | Occupation | Relation |
|---|---|---|---|---|---|---|
| 1920 | Ole Olson | Richland, North Dakota | North Dakota | — | Son | |
| 1920 | Ole Olson | Fergus, Montana | Montana | — | Son | |
| 1920 | Ole Olson | Pembina, North Dakota | North Dakota | Mechanic | Son | |
| 1930 | Ole Olson | Swift, Minnesota | Iowa | Laborer | Son | |
| 1940 | Ole L. Olson | 41 | Traill-County, North Dakota | North Dakota | Farmer | Head |
| 1920 | Ole Olson | Cavalier, North Dakota | North Dakota | Farm Labor | Son | |
| 1940 | Ole Olson | 25 | Worth-County, Iowa | Iowa | Farm Operator | Son |
| 1920 | Ole Olson | Salt Lake, Utah | Sweden | Steel Worker | Son | |
| 1940 | Ole Olson | 72 | Mille-Lacs-County, Minnesota | Sweden | Farmer | Head |
| 1930 | Ole Olson | St Louis, Minnesota | Sweden | Carpenter | Head | |
| 1930 | Ole P. Olson | Otter Tail, Minnesota | Minnesota | Farming | Head | |
| 1930 | Ole A. Olson | Hennepin, Minnesota | Sweden | Station Engineer | Head | |
| 1910 | Ole Olson | Bureau, Illinois | Sweden | Miner | Head | |
| 1930 | Ole Olson | Wadena, Minnesota | Sweden | Farmer | Head | |
| 1940 | Ole Olson | 71 | Los-Angeles-County, California | Sweden | Tailor | Head |
| 1910 | Ole A Olson | Alameda, California | Illinois | Shipwright | Head | |
| 1910 | Ole H. Olson | Mckenzie, North Dakota | Norway | Farmer | Head | |
| 1920 | Ole Olson | St Louis, Minnesota | Sweden | None | Head | |
| 1920 | Ole J. Olson | Hennepin, Minnesota | Norway | Mechanic | Head | |
| 1920 | Ole Olson | Iron, Michigan | Sweden | Farmoperator | Head | |
| 1920 | Ole E. Olson | Cavalier, North Dakota | Norway | Carpenter | Head | |
| 1920 | Ole C. Olson | Milwaukee, Wisconsin | Wisconsin | — | Head | |
| 1920 | Ole M. Olson | Mchenry, North Dakota | Minnesota | Farmer | Head | |
| 1920 | Ole K. Olson | Trempealeau, Wisconsin | Norway | Dealer | Head | |
| 1910 | Ole Olson | Renville, Minnesota | Finland | Farmer | Head | |
| 1920 | Ole R. Olson | Roosevelt, Montana | Nebraska | Farmer | Head | |
| 1920 | Ole J Olson | Olmsted, Minnesota | Norway | Painter | Head | |
| 1920 | Ole Olson | Todd, Minnesota | Sweden | Farmer | Head | |
| 1940 | Ole Olson | 74 | Pierce-County, North Dakota | Sweden | Farmer | Head |
| 1930 | Ole M. Olson | Todd, Minnesota | Norway | Farmer | Head |
About Ole Olson US Census Records & Model Tree
We've indexed 5279 free, proprietary US Census records for Ole Olson across 1900–1950, covering 41 states: Alabama, Alaska, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Tennessee, Texas, Utah, 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 Ole lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.
Last updated: July 30, 2026
Frequently Asked Questions
- We have 5279 US Census records for Ole Olson, from 1900 to 1950, across 41 states.
- You'll see Ole'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 Ole Olson'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 Ole Olson 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 Ole Olson records from the 1900 through 1950 US Federal Census, across 41 states. 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.