WT
William Tyler — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Tyler across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents David & David — first a son (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Tyler |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Evanston city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | statistician |
| Industry | wholesale oil |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Statistician |
| Township / Ward | Evanston City |
| Est. Birth Year | ~1916 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Tyler | Son | — | 24 | ~1916 |
| Bertha Tyler | Spouse | — | 73 | ~1867 |
| David Tyler | Head | — | 73 | ~1867 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tyler |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tyler |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 24
Cook-County, Illinois · implied b. ~1916 — 3 household members
| Surname | Tyler |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Evanston city |
| 1935 Residence (County) | Cook |
| Occupation | statistician |
| Industry | wholesale oil |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links William Tyler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Tyler (~0.92 confidence) and father David Tyler (~0.92 confidence) and mother Bertha Tyler (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Tyler
b. ~1867
Source father
● Household
· direct · ~0.92
Father
David Tyler
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Bertha Tyler
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Tyler
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00779-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas H. Brown | 50 | Head | Office Manager | Illinois |
| 2 | Frances S. Brown | 46 | Wife | — | Minnesota |
| 3 | John T. Brown | 19 | Son | — | Minnesota |
| 4 | Robert F. Brown | 17 | Son | — | Minnesota |
| 5 | David Lyman | 50 | Head | Pharmacist | Russia |
| 6 | Cora S. Lyman | 45 | Wife | Pharmacist | Wisconsin |
| 7 | Lois Lyman | 10 | Daughter | — | Illinois |
| 8 | Lee Blohm | 25 | Maid | Maid | Illinois |
| 9 | In Error Left Too Many Lines | None | — | — | — |
| 10 | In Error Left Too Many Lines | None | — | — | — |
| 11 | Thomas Iii Brown | 22 | Head | Merchandise Man | Scotland |
| 12 | Margaret Brown | 22 | Wife | — | Illinois |
| 13 | Thomas Iv Brown | 2 | Son | — | Illinois |
| 14 | Penelope Brown | 0 | Daughter | — | Illinois |
| 15 | Berger Olin | 32 | Head | Janitor | Sweden |
| 16 | Tillie Olin | 31 | Wife | — | Michigan |
| 17 | James Olin | 2 | Son | — | Illinois |
| 18 | Sture Olin | 36 | Brother | Janitor | Sweden |
| 19 | William E. Lewis | 70 | Head | — | Illinois |
| 20 | Adele Lewis | 55 | Wife | — | Tennessee |
| 21 | Beverly Lewis | 29 | Daughter | Cashier | Illinois |
| 22 | Oliver H. Miller | 65 | Lodger | Treasurer | Indiana |
| 23 | Ralph B. Zeller | 49 | Head | Traffic Clerk | New York |
| 24 | William Zeller | 86 | Father | — | Germany |
| 25 | Anna Zeller | 70 | Mother | — | Germany |
| 26 | Elsie Steenbock | 63 | Sister | — | Illinois |
| 27 | Clarence Heamon | 36 | Head | Dentist | Michigan |
| 28 | Lucile Heamon | 35 | Wife | — | Michigan |
| 29 | John Heamon | 6 | Son | — | Illinois |
| 30 | Thomas Heamon | 2 | Son | — | Illinois |
| 31 | Rose Soffiette | 18 | Maid | Maid | Michigan |
| 32 | Edward Wray | 56 | Head | Publisher | Wisconsin |
| 33 | Margaret Wray | 56 | Wife | — | Wisconsin |
| 34 | Isabelle Wray | 25 | Daughter | — | Illinois |
| 35 | John E. Wray | 17 | Son | — | Illinois |
| 36 | David T. Tyler | 73 | Head | — | South Wales |
| 37 | Bertha Tyler | 73 | Wife | — | England |
| 38 | William Tyler THIS PERSON | 24 | Son | Statistician | Illinois |
| 39 | James K. Sharp | 71 | Head | File Department | Missouri |
| 40 | Iva M. Sharp | 58 | Wife | — | Indiana |
Pedigree Summary
William
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)