WJ
William John — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William John across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | John |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Barrington Township |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Barrington Township |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Raymond Lund | Other | — | 17 | ~1923 |
| Irey John | Son | — | 3 | ~1937 |
| Minnie John | Spouse | — | 32 | ~1908 |
| Eleanore John | Daughter | — | 6 | ~1934 |
| Ruth John | Daughter | — | ~1940 | |
| William John | Head | — | 37 | ~1903 |
| Gladys John | Daughter | — | 2 | ~1938 |
| Shirley John | Daughter | — | 4 | ~1936 |
Census Appearances
1930
Cook, Illinois
Son, age 27
Cook, Illinois · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | John |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Indiana |
| Occupation | Asst. Foreman |
| Industry | Furnace |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 37
Cook-County, Illinois · implied b. ~1903 — 8 household members
| Surname | John |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Barrington Township |
| 1935 Residence (County) | Cook |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 John across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William John
Head · 1940 · age 37 · b. ~1903 · Illinois
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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-t0627-00772-00083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Herz | 46 | Head | Interior Decorator | Illinois |
| 2 | Freda Herz | 47 | Wife | — | Denmark |
| 3 | William Herz | 12 | Son | — | Illinois |
| 4 | William Armstrong | 40 | Head | Traffic Manager | New York |
| 5 | Virginia Armstrong | 36 | Wife | — | New Jersey |
| 6 | Nancy Armstrong | 6 | Daughter | — | Illinois |
| 7 | Edith Chambers | 65 | Mother-in-law | — | New Jersey |
| 8 | Elmer Hatfield | 43 | Head | Gardner | Illinois |
| 9 | Fern Hatfield | 43 | Wife | — | Nebraska |
| 10 | Ruth Hatfield | 16 | Daughter | — | Wisconsin |
| 11 | Joyce Hatfield | 12 | Daughter | — | Wisconsin |
| 12 | Edwin P. Jr. Vanderwielen | 32 | Head | Operator | Illinois |
| 13 | Martha S. Vanderwielen | 31 | Wife | — | Tennessee |
| 14 | Peter Vanderwielen | 3 | Son | — | Illinois |
| 15 | William Beis | 37 | Head | Laborer | Illinois |
| 16 | Edna Beis | 35 | Wife | — | Illinois |
| 17 | William Jr. Beis | 14 | Son | — | Illinois |
| 18 | Lila Beis | 12 | Daughter | — | Illinois |
| 19 | Clifford Beis | 10 | Son | — | Illinois |
| 20 | Blanche Beis | 7 | Daughter | — | Illinois |
| 21 | Frank W. Kaehler | 55 | Head | Farmer | Illinois |
| 22 | Martha Kaehler | 51 | Wife | — | Illinois |
| 23 | Frank Jr. Kaehler | 24 | Son | Farmer | Illinois |
| 24 | Joseph Van Dyke | 77 | Father-in-law | — | Holland |
| 25 | Flora Van Dyke | 71 | Mother-in-law | — | Illinois |
| 26 | Martin Elijah | 59 | Head | Farmer | Illinois |
| 27 | Emma Elijah | 58 | Wife | — | Illinois |
| 28 | Joseph Elijah | 54 | Head | Farmer | Illinois |
| 29 | Mathilda Elijah | 53 | Wife | — | Illinois |
| 30 | Irma Elijah | 20 | Daughter | — | Illinois |
| 31 | William John THIS PERSON | 37 | Head | Farmer | Illinois |
| 32 | Minnie John | 32 | Wife | — | Illinois |
| 33 | Eleanore John | 6 | Daughter | — | Illinois |
| 34 | Shirley John | 4 | Daughter | — | Illinois |
| 35 | Irey John | 3 | Son | — | Illinois |
| 36 | Gladys John | 2 | Daughter | — | Illinois |
| 37 | Ruth John | 0 | Daughter | — | Illinois |
| 38 | Raymond Lund | 17 | Hired Help | Farmer | Illinois |
| 39 | Fred Wendt | 55 | Head | Farmer | Germany |
| 40 | Mathilda Wendt | 49 | Wife | — | Illinois |
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)