William Jacobs — US Census Records & Model Tree
We found 6531 free census records for William Jacobs across 6 census years (1900–1950), in 50 states, DC, and 2 territories and 1226 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.
William Jacobs Census Records by State & County
Census Record Search
| Year | Name | Age | Location | Birthplace | Occupation | Relation |
|---|---|---|---|---|---|---|
| 1940 | William Jacobs | 31 | Durham-County, North Carolina | North Carolina | Laborer | Head |
| 1930 | William A. Jacobs | Keokuk, Iowa | Iowa | Laborer | Son | |
| 1920 | William Jacobs | Carlton, Minnesota | Poland | — | Son | |
| 1930 | William R Jacobs | Cook, Illinois | Illinois | None | Son | |
| 1930 | William Jacobs | Queens, New York | New York | — | Son | |
| 1940 | William Jacobs | 42 | Lee-County, Illinois | Germany | Operator | Head |
| 1940 | William Jr. Jacobs | 21 | Laurens-County, South Carolina | South Carolina | — | Son |
| 1940 | William Jacobs | 31 | Atlantic-County, New Jersey | New Jersey | Chauffeur | Head |
| 1940 | William A Jacobs | 26 | Summit-County, Ohio | Ohio | Yard Man | Head |
| 1930 | William C. Jacobs | York, Maine | New Hampshire | Trucker | Son | |
| 1920 | William T. Jacobs | Phillips, Kansas | Kentucky | Labor | Head | |
| 1920 | William Jacobs | Mclean, Illinois | Pennsylvania | Farmer | Head | |
| 1930 | William Jacobs | Mcintosh, Oklahoma | Kentucky | Farmer | Head | |
| 1940 | William L. Jacobs | 73 | Dougherty-County, Georgia | S. Carolina | — | Head |
| 1940 | William Jacobs | 59 | Athens-County, Ohio | Germany | Miner | Head |
| 1940 | William Jacobs | 43 | Monroe-County, New York | Poland | Tailor | Head |
| 1920 | William O. Jacobs | Stafford, Virginia | Virginia | Farmer | Head | |
| 1910 | William C. Jacobs | Marion, Iowa | Pennsylvania | — | Head | |
| 1930 | William Jacobs | Ross, Ohio | Ohio | Yes Farmer | Head | |
| 1920 | William Jacobs | Perry, Pennsylvania | Pennsylvania | None | Head | |
| 1930 | William F. Jacobs | Strafford, New Hampshire | New Hampshire | Repairman | Head | |
| 1940 | William Jacobs | 58 | Pierce-County, Washington | Poland | Janitor | Head |
| 1940 | William B. Jacobs | 42 | St.-Joseph-County, Michigan | Indiana | Paper Maker | Head |
| 1940 | William Jacobs | 30 | Harrison-County, Indiana | Indiana | Same House | Son |
| 1940 | William Jacobs | 14 | Allegheny-County, Pennsylvania | Pennsylvania | — | Son |
| 1940 | William Jacobs | 13 | Richland-County, South Carolina | South Carolina | — | Son |
| 1940 | William Jacobs | 19 | Summit-County, Ohio | Ohio | Salesman | Son |
| 1940 | William Jacobs | 31 | Franklin-County, Tennessee | Tennessee | Laborer | Son |
| 1910 | William Jacobs | Marion, Florida | Florida | Farmer | Head | |
| 1920 | William J Jacobs | Greene, Pennsylvania | Pennsylvania | — | Son |
About William Jacobs US Census Records & Model Tree
We've indexed 6531 free, proprietary US Census records for William Jacobs across 1900–1950, covering 50 states, DC, and 2 territories: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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, Puerto Rico, 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 William 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 6531 US Census records for William Jacobs, from 1900 to 1950, across 50 states, DC, and 2 territories.
- You'll see William'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 William Jacobs'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 William Jacobs 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 William Jacobs records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 territories. 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.