How many William Montgomery census records do you have?

We have 7542 US Census records for William Montgomery, from 1900 to 1950, across 50 states and DC.

What's in a William Montgomery census record?

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.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow William Montgomery'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.

Are William Montgomery census records free?

Yes. All William Montgomery census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover William Montgomery?

We have William Montgomery records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters to narrow your results.

How do I find William Montgomery in the census?

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.

What is the Model Tree for William Montgomery?

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.

Where does the census data come from?

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.

William Montgomery — US Census Records & Model Tree

We found 7542 free census records for William Montgomery across 6 census years (1900–1950), in 50 states and DC and 1466 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 7542 records for William Montgomery US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	William S. Montgomery		Merrimack, New Hampshire	New Hampshire	Rural Mail Carrier	Head
1920	William Montgomery		Spartanburg, South Carolina	South Carolina	—	Son
1900	William Montgomery	11	Monroe, Alabama	Alabama	Farm Labor	Son
1920	William Montgomery		Taylor, Georgia	Georgia	—	Son
1940	William Montgomery	39	San-Mateo-County, California	Colorado	Department Manager	Head
1940	William Montgomery	24	Los-Angeles-County, California	California	—	Son
1920	William Montgomery		Mccracken, Kentucky	Kentucky	—	Son
1940	William J. Montgomery	21	Tioga-County, Pennsylvania	Pennsylvania	Laborer	Son
1940	William E. Montgomery	22	Guernsey-County, Ohio	Ohio	Usher	Son
1920	William Montgomery		Sumter, South Carolina	South Carolina	Farmer	Head
1940	William W. Montgomery	28	King-County, Washington	Washington	Lawyer	Head
1940	William E. Montgomery	29	King-County, Washington	Washington	Wholesale Plumbing	Son
1940	William S. Montgomery	29	Rock-Island-County, Illinois	Illinois	Secretary Manager	Son
1940	William M Montgomery	31	Floyd-County, Georgia	Mississippi	—	Son
1940	William N Montgomery	29	Greene-County, Missouri	Arkansas	Laborer	Son
1920	William J. Montgomery		Butler, Pennsylvania	Pennsylvania	Laborer	Son
1930	William M. Montgomery		White, Tennessee	Tennessee	Farmer	Head
1920	William Montgomery		Union, North Carolina	North Carolina	Farmer	Head
1900	William Montgomery	58	Hamilton, Tennessee	Indiana	Custodian	Head
1940	William D Montgomery	59	Foster-County, North Dakota	Scotland	Farmer	Head
1940	William D Montgomery	61	York-County, South Carolina	South Carolina	Farmer	Head
1940	William Montgomery	39	Denver-County, Colorado	Colorado	Proprietor	Head
1930	William Montgomery		Ellis, Kansas	Ohio	Farmer	Head
1940	William Montgomery	10	Wayne-County, Michigan	Michigan	—	Son
1940	William Montgomery	40	Charles-County, Maryland	Maryland	Farm Hand	Head
1940	William O. Montgomery	45	Jefferson-County, Ohio	West Virginia	Carpenter	Head
1920	William H Montgomery		Pickens, Alabama	Alabama	—	Son
1940	William E. Montgomery	19	Peoria-County, Illinois	Illinois	Miner	Son
1940	William R. Montgomery	34	Baltimore-City-County, Maryland	Maryland	Laborer	Head
1900	William L Montgomery	23	Dade, Missouri	Missouri	Working In Mines	Son

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About William Montgomery US Census Records & Model Tree

We've indexed 7542 free, proprietary US Census records for William Montgomery 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 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.

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 7542 US Census records for William Montgomery, from 1900 to 1950, across 50 states and DC.
: 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 Montgomery'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 Montgomery 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 Montgomery 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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