CS
Carol Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Carol Smith across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | School |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | School |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1923 |
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 Carol | Age | Birth yr |
|---|---|---|---|---|
| Irene Smith | Spouse | — | 45 | ~1895 |
| Janet Smith | Daughter | — | 19 | ~1921 |
| Robert Smith | Son | — | 12 | ~1928 |
| Carol Smith | Daughter | — | 17 | ~1923 |
| Edgar Smith | Head | — | 52 | ~1888 |
Census Appearances
1930
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 17
Cook-County, Illinois · implied b. ~1923 — 5 household members
| Surname | Smith |
| Given Name | Carol |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | School |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| 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 Carol Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carol Smith
Daughter · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
Robert Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet Smith
Sibling · 1940 · age 19
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-t0627-00935-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Miner | 65 | Head | Salesman | Michigan |
| 42 | Jennie Miner | 62 | Wife | Housewife | Illinois |
| 43 | Lawrence Miner | 39 | Son | Salesman | Illinois |
| 44 | Florence Miner | 39 | Daughter-in-law | Housewife | Illinois |
| 45 | Elaine Miner | 12 | Daughter | — | Illinois |
| 46 | Moses Levy | 64 | Lodger | Unable | Illinois |
| 47 | Robert Saltz | 49 | Head | — | Wisconsin |
| 48 | Albert Saltz | 33 | Son | Cutter | Wisconsin |
| 49 | Sydney Saltz | 26 | Son | Part Owner | Wisconsin |
| 50 | Sam Saltz | 22 | Son | Part Owner | Wisconsin |
| 51 | Bernard Saltz | 18 | Son | Part Owner | Wisconsin |
| 52 | Theodore Saltz | 14 | Son | — | Illinois |
| 53 | Julius Levy | 55 | Head | Reg Pharmacist | Illinois |
| 54 | Sara Levy | 52 | Wife | — | Illinois |
| 55 | Janette Levy | 29 | Daughter | Bookkeeper | Illinois |
| 56 | Herman Wolf | 29 | Son-in-law | Driver | Illinois |
| 57 | Sally Wolf | 22 | Daughter | — | Illinois |
| 58 | Morris Diamon | 44 | Head | Salesman | Russia |
| 59 | Betty Diamon | 35 | Wife | — | New York |
| 60 | Max Egert | 33 | Head | Cashier | New York |
| 61 | Fay Egert | 32 | Wife | — | Illinois |
| 62 | Marilyn Egert | 7 | Daughter | — | Illinois |
| 63 | Adele Egert | 58 | Mother-in-law | — | Austria |
| 64 | Jesse Vollmer | 66 | Head | Mail Clerk | Kentucky |
| 65 | Nora Vollmer | 63 | Wife | Housewife | Kentucky |
| 66 | Edgar Smith | 52 | Head | Salesman | Indiana |
| 67 | Irene Smith | 45 | Wife | Housewife | Illinois |
| 68 | Janet Smith | 19 | Daughter | Clerk | Illinois |
| 69 | Carol Smith THIS PERSON | 17 | Daughter | School | Illinois |
| 70 | Robert Smith | 12 | Son | — | Illinois |
| 71 | Arthur Kaplan | 48 | Head | Lawyer | Illinois |
| 72 | Ruth Kaplan | 41 | Wife | Housewife | Illinois |
| 73 | Donna Kaplan | 16 | Daughter | — | Illinois |
| 74 | Lawrence Kaplan | 12 | Son | — | Illinois |
| 75 | Justine Mortenson | 72 | Head | Unable | Sweden |
| 76 | Emma Mortenson | 71 | Wife | Housewife | Minnesota |
| 77 | Andrew Unrau | 44 | Head | Supervisor | Illinois |
| 78 | Muriel Unrau | 42 | Wife | Housewife | Illinois |
| 79 | Carol Unrau | 5 | Daughter | — | Illinois |
| 80 | Francis Byrnes | 67 | Head | Other | Illinois |
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)