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Jean Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Jean Smith across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1928 |
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 Jean | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Smith | Daughter | — | 8 | ~1932 |
| Shirley Smith | Daughter | — | 14 | ~1926 |
| Jean Smith | Daughter | — | 12 | ~1928 |
| Edread Smith | Daughter | — | 16 | ~1924 |
| Edward Smith | Head | — | 41 | ~1899 |
| Harold Smith | Son | — | 10 | ~1930 |
| Michael Smith | Son | — | 2 | ~1938 |
| Gladys Smith | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jean |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 12
Cook-County, Illinois · implied b. ~1928 — 8 household members
| Surname | Smith |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Highest Grade | S 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 Jean Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jean Smith
Daughter · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Edread Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Smith
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Smith
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-00923-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas, Lenard Thomas | 22 | Brother-in-law | — | Illinois |
| 2 | Lawrence Thomas | 10 | Nephew | — | Illinois |
| 3 | Lloyd Thomas | 30 | Head | Porter | Arkansas |
| 4 | Helen Thomas | 32 | Wife | — | Iowa |
| 5 | Bertha Fletcher | 60 | Mother-in-law | — | Iowa |
| 6 | Woodrow Anderson | 27 | Lodger | Common Laborer | Iowa |
| 7 | Valgene Anderson | 5 | Lodger | — | Iowa |
| 8 | Hazel White | 25 | Lodger | Finisher | Arkansas |
| 9 | George Creighton | 31 | Lodger | — | Georgia |
| 10 | George Spearman | 46 | Head | Common Laborer | Tennessee |
| 11 | Selina Spearman | 39 | Wife | — | Tennessee |
| 12 | George Spearman | 19 | Son | — | Illinois |
| 13 | Jerry Spearman | 12 | Son | — | Illinois |
| 14 | Doris Spearman | 6 | Daughter | — | Illinois |
| 15 | Edward Smith | 41 | Head | — | Tennessee |
| 16 | Gladys Smith | 36 | Wife | — | Alabama |
| 17 | Edread Smith | 16 | Daughter | — | Illinois |
| 18 | Shirley Smith | 14 | Daughter | — | Illinois |
| 19 | Jean Smith THIS PERSON | 12 | Daughter | — | Illinois |
| 20 | Harold Smith | 10 | Son | — | Illinois |
| 21 | Marilyn Smith | 8 | Daughter | — | Illinois |
| 22 | Michael Smith | 2 | Son | — | Illinois |
| 23 | Odena Miller | 42 | Head | — | Arkansas |
| 24 | Lula Miller | 18 | Daughter | — | Arkansas |
| 25 | Caroline D'Arr | 59 | Lodger | — | South Carolina |
| 26 | John Johnson | 44 | Head | Common Laborer | Mississippi |
| 27 | Isabelle Johnson | 40 | Wife | — | Mississippi |
| 28 | Abraham Johnson | 16 | Son | — | Illinois |
| 29 | James Johnson | 11 | Son | — | Illinois |
| 30 | Nathaniel Johnson | 10 | Son | — | Illinois |
| 31 | Josephine Johnson | 5 | Daughter | — | Illinois |
| 32 | Arthur White | 28 | Lodger | Decorator | North Carolina |
| 33 | Hattie Redding | 36 | Lodger | — | Alabama |
| 34 | J. Annabelle Redding | 8 | Daughter | — | Illinois |
| 35 | William Felton | 35 | Lodger | — | Alabama |
| 36 | Fred Carrington | 52 | Head | Custodian | Mississippi |
| 37 | Martha Carrington | 40 | Wife | — | Mississippi |
| 38 | Lois Carrington | 4 | Daughter | — | Indiana |
| 39 | Houston Jones | 65 | Father-in-law | Common Laborer | Mississippi |
| 40 | Agnes Perkins | 50 | Head | — | Mississippi |
Related Census Records
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)