SS
Sylvia Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Sylvia Smith across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 11-person household.
Age 32
b. ~1908
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Office operator |
| Industry | Paper Bag Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | Hs 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Office Operator |
| Township / Ward | Leyden Twp |
| Est. Birth Year | ~1908 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sylvia | Age | Birth yr |
|---|---|---|---|---|
| Abraham Aiken | Son | — | 18 | ~1922 |
| Walter Kruppa | Other | — | 11 | ~1929 |
| Evelyn Aiken | Spouse | — | 42 | ~1898 |
| Sylvia Smith | Daughter | — | 32 | ~1908 |
| Margaret Aiken | Daughter | — | 10 | ~1930 |
| Aiko Aiken | Head | — | 48 | ~1892 |
| Frederick Aiken | Son | — | 16 | ~1924 |
| Alice Dohse | Daughter | — | 38 | ~1902 |
| Betty Miller | Daughter | — | 30 | ~1910 |
| Elizabeth Riebninger | Other | — | 5 | ~1935 |
| Margaret Kruppa | Other | — | 8 | ~1932 |
Census Appearances
1930
Cook, Illinois
Spouse, age 22
Cook, Illinois · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 15 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 32
Cook-County, Illinois · implied b. ~1908 — 11 household members
| Surname | Smith |
| Given Name | Sylvia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Office operator |
| Industry | Paper Bag Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | Hs 5 |
| 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 Sylvia Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sylvia Smith
Daughter · 1940 · age 32 · b. ~1908 · Illinois
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Sibling
Frederick Aiken
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Abraham Aiken
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Dohse
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Miller
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Aiken
Sibling · 1940 · age 10
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
23 people indexed on this census page (nara:1940:m-t0627-00781-00090)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albertina Kruger | 61 | Head | — | Illinois |
| 2 | Dorothy Anderson | 35 | Housekeeper | Housekeeper | Norway |
| 3 | Theodore Guraschki | 22 | Head | Factory Laborer | Illinois |
| 4 | Charlotte Guraschki | 16 | Wife | — | Germany |
| 5 | Donald Guraschki | 0 | Son | — | Illinois |
| 6 | Alta S. Barnes | 52 | Head | Mechanical Engineer | Illinois |
| 7 | Henry Jr. Moldenhauer | 16 | Son | Elect. Equip. Repairman | Illinois |
| 8 | Paul Comper | 11 | Daughter | — | Illinois |
| 9 | Anna Spuemann | 63 | Housekeeper | Housekeeper | Germany |
| 10 | Donald Januschki | 5 | Grandson | — | Illinois |
| 11 | Donald Sutkiewicz | 33 | Hired boy | Truck Driver | Pennsylvania |
| 12 | Michael Yost | 40 | Partner | Waiter | Norway |
| 13 | Aiko John Aiken | 48 | Head | Truck Farmer | Holland |
| 14 | Evelyn Aiken | 42 | Wife | Truck Farm Laborer | Illinois |
| 15 | Abraham Aiken | 18 | Son | Truck Farm Helper | Illinois |
| 16 | Frederick Aiken | 16 | Son | Truck Farm Laborer | Illinois |
| 17 | Margaret Aiken | 10 | Daughter | — | Illinois |
| 18 | Alice Dohse | 38 | Daughter | Office Clerk | Illinois |
| 19 | Sylvia Smith THIS PERSON | 32 | Daughter | Office Operator | Illinois |
| 20 | Walter Kruppa | 11 | Grandson | — | Illinois |
| 21 | Margaret Kruppa | 8 | Granddaughter | — | Illinois |
| 22 | Elizabeth Riebninger | 5 | Sister | — | Illinois |
| 23 | Betty Miller | 30 | Daughter | Telephone Operator | Missouri |
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)