JG
John Gilbert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Gilbert across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Gilbert |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Blue Island City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | chauffeur |
| Industry | private individual |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2160 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Chauffeur |
| Township / Ward | Blue Island City |
| Est. Birth Year | ~1892 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jean Gilbert | Daughter | — | 17 | ~1923 |
| Molly Gilbert | Daughter | — | 23 | ~1917 |
| John Gilbert | Head | — | 48 | ~1892 |
| John Gilbert | Son | — | 11 | ~1929 |
| Marie Gilbert | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Cook, Illinois
Head, age 25
Cook, Illinois · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gilbert |
| Given Name | John H. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | chauffeur |
| Industry | private family |
| Class of Worker | S |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | england |
1930
Cook, Illinois
Head, age 33
Cook, Illinois · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gilbert |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 24 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Serviceman |
| Industry | Motor Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Cook-County, Illinois
Head, age 48
Cook-County, Illinois · implied b. ~1892 — 5 household members
| Surname | Gilbert |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Blue Island City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | chauffeur |
| Industry | private individual |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2160 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 John Gilbert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Gilbert
Head · 1940 · age 48 · b. ~1892 · 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
38 people indexed on this census page (nara:1940:m-t0627-00774-00825)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence O. Williams | 50 | Head | Yard Master | Indiana |
| 2 | Fern O. Williams | 44 | Wife | — | Illinois |
| 3 | Robert O. Williams | 17 | Son | — | Illinois |
| 4 | Gustav O. Klein | 48 | Head | Railroad Clerk | Illinois |
| 5 | Christie L. Klein | 45 | Wife | Telephone Operator | Illinois |
| 6 | Lucille C. Klein | 23 | Daughter | Stenographer | Illinois |
| 7 | Roscoe M. Snow | 45 | Head | Locomotive Fireman | Tennessee |
| 8 | Belle M. Snow | 38 | Wife | — | Tennessee |
| 9 | Frances L. Snow | 16 | Daughter | — | Tennessee |
| 10 | Lorus M. Snow | 14 | Son | — | Illinois |
| 11 | Charles B. Snow | 7 | Son | — | Illinois |
| 12 | Lathan R. Swafford | 24 | Brother-in-law | Bus Driver | Tennessee |
| 13 | Richard C. Mansfield | 34 | Head | Electrician | Illinois |
| 14 | Adeline Mansfield | 34 | Wife | — | Illinois |
| 15 | Ralph Traddicar | 48 | Head | Car Inspector | England |
| 16 | Clara Traddicar | 37 | Wife | — | Illinois |
| 17 | Ralph W. Jr. Traddicar | 25 | Son | Electrician | Illinois |
| 18 | Clarence B. Traddicar | 24 | Son | Switchman | Illinois |
| 19 | William D. Traddicar | 23 | Son | Salesman | Illinois |
| 20 | Elizabeth Traddicar | 21 | Daughter | Helper | Illinois |
| 21 | Florence A. Traddicar | 19 | Daughter | Helper | Illinois |
| 22 | John F. Traddicar | 13 | Son | — | Illinois |
| 23 | John H. Gilbert THIS PERSON | 48 | Head | Chauffeur | England |
| 24 | Marie L. Gilbert | 48 | Wife | — | Illinois |
| 25 | Molly E. Gilbert | 23 | Daughter | Grade School Teacher | Illinois |
| 26 | Jean A. Gilbert | 17 | Daughter | — | Illinois |
| 27 | John C. Gilbert | 11 | Son | — | Illinois |
| 28 | James W. Hart | 57 | Head | Salesman | Minnesota |
| 29 | Lora B. Hart | 49 | Wife | — | Illinois |
| 30 | Caroline M. Boermel | 77 | Head | — | Illinois |
| 31 | Ernst H. Boermel | 58 | Son | Laborer | Illinois |
| 32 | Emil A. Space | 43 | Head | Freight Claim Adjuster | Illinois |
| 33 | Florence W. Space | 40 | Wife | — | Illinois |
| 34 | Dorothy M. Space | 11 | Daughter | — | Illinois |
| 35 | Carol F. Space | 6 | Daughter | — | Illinois |
| 36 | John C. Habich | 59 | Head | Carpenter | Illinois |
| 37 | Mary E. Habich | 56 | Wife | — | Illinois |
| 38 | Raymond E. Habich | 18 | Son | — | 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)