How many William Gillespie census records do you have?

We have 3681 US Census records for William Gillespie, from 1900 to 1950, across 50 states and DC.

What's in a William Gillespie 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 Gillespie'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 Gillespie census records free?

Yes. All William Gillespie 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 Gillespie?

We have William Gillespie 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 Gillespie 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 Gillespie?

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 Gillespie — US Census Records & Model Tree

We found 3681 free census records for William Gillespie across 6 census years (1900–1950), in 50 states and DC and 852 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Gillespie Census Records by State & County

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Showing of 3681 records for William Gillespie US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	William J Gillespie		Carlton, Minnesota	Minnesota	Salesman	Son
1940	William C Jr Gillespie	22	Macon-County, Illinois	Illinois	Helper	Son
1930	William N. Gillespie		Allegheny, Pennsylvania	Pennsylvania	Waiter	Son
1940	William N. Gillespie	82	Transylvania-County, North Carolina	North Carolina	Farming	Head
1920	William H Gillespie		Shawnee, Kansas	Pennsylvania	Yes	Head
1930	William H. Gillespie		King, Washington	Ohio	Dealer	Head
1940	William Gillespie	16	Smyth-County, Virginia	Virginia	—	Son
1940	William Gillespie	18	Cumberland-County, New Jersey	New York	—	Son
1910	William M Gillespie		Bladen, North Carolina	North Carolina	Farmer	Head
1940	William H. Gillespie	21	Chickasaw-County, Mississippi	Mississippi	Laborer	Son
1910	William Gillespie		Rio Blanco, Colorado	Iowa	Farmer	Head
1930	William Gillespie		Gordon, Georgia	Georgia	Farmer	Head
1940	William Gillespie	21	Cambria-County, Pennsylvania	Pennsylvania	Coal Miner	Son
1940	William Gillespie	61	Beaver-County, Pennsylvania	Ireland	Freight Agent	Head
1910	William Gillespie		None, None	Virginia	—	Son
1930	William L. Gillespie		Lumpkin, Georgia	Georgia	Farm Hand	Son
1910	William A Gillespie		Graham, Arizona	Tennessee	Farmer	Head
1940	William Gillespie	15	Butler-County, Ohio	Ohio	—	Son
1940	William E Gillespie	18	Ray-County, Missouri	Missouri	New Worker	Son
1940	William M. Gillespie	36	Bexar-County, Texas	Oklahoma	Staff Sergeant	Head
1930	William Jr. Gillespie		Oktibbeha, Mississippi	Mississippi	Laborer	Son
1940	William E. Gillespie	21	Harrison-County, Texas	Texas	Baker	Son
1940	William Gillespie	11	Genesee-County, Michigan	Michigan	—	Son
1910	William Gillespie		Providence, Rhode Island	Scotland	Manager	Head
1940	William C. Gillespie	52	Harlan-County, Nebraska	Kansas	Carpenter	Head
1930	William Gillespie		Minnehaha, South Dakota	South Dakota	—	Son
1910	William Gillespie		Banks, Georgia	Georgia	Bank President	Head
1940	William Gillespie	15	Cook-County, Illinois	Illinois	—	Son
1940	William E. Gillespie	13	Brooke-County, West Virginia	Ohio	—	Son
1940	William M. Gillespie	47	Spartanburg-County, South Carolina	North Carolina	Billing Clerk	Head

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About William Gillespie US Census Records & Model Tree

We've indexed 3681 free, proprietary US Census records for William Gillespie 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 3681 US Census records for William Gillespie, 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 Gillespie'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 Gillespie 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 Gillespie 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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