HW
Helen Wilson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Helen Wilson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Stella & Walter — first a daughter (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Wilson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1913 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Anna Wilson | Daughter | — | 12 | ~1928 |
| Lorraine Wilson | Daughter | — | 10 | ~1930 |
| Helen Wilson | Daughter | — | 27 | ~1913 |
| Walter Piotrowski | Head | — | 62 | ~1878 |
| James Wilson | Other | — | 34 | ~1906 |
| Roman Piotrowski | Son | — | 24 | ~1916 |
| Stella Piotrowski | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| 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 27
Cook-County, Illinois · implied b. ~1913 — 7 household members
| Surname | Wilson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 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 Helen Wilson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Stella Piotrowski (~0.92 confidence) and father Walter Piotrowski (~0.92 confidence) and father Archie Wilson (~0.92 confidence) and mother Amanda Wilson (~0.92 confidence) and father Robert Wilson (~0.92 confidence) and mother Rose Wilson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Stella Piotrowski
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Walter Piotrowski
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Archie Wilson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Amanda Wilson
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
Robert Wilson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Rose Wilson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Wilson
Daughter · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Anna Wilson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Wilson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roman Piotrowski
Sibling · 1940 · age 24
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-t0627-00946-00822)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Matthew Malac | 60 | Head | Carpenter | Czecho |
| 2 | Anna Malac | 58 | Wife | — | Czecho |
| 3 | Martin Malac | 31 | Son | Painter | Illinois |
| 4 | John Malac | 25 | Son | — | Illinois |
| 5 | Joseph Malac | 20 | Son | Trucker | Illinois |
| 6 | Stephen Malac | 18 | Son | New Worker | Illinois |
| 7 | Sophie Malac | 17 | Daughter | New Worker | Illinois |
| 8 | Peter Malac | 13 | Son | — | Illinois |
| 9 | Frances Tandowski | 55 | Head | — | Poland |
| 10 | Stephen Tandowski | 21 | Son | Labor | Illinois |
| 11 | Matthew Tandowski | 21 | Son | New Worker | Illinois |
| 12 | Alice Tandowski | 15 | Daughter | — | Illinois |
| 13 | John Novak | 39 | Head | Machinist | Illinois |
| 14 | Violet Novak | 33 | Wife | — | Illinois |
| 15 | Lorraine Novak | 12 | Daughter | — | Illinois |
| 16 | Roman Modzyf | 49 | Head | Carpenter | Austria |
| 17 | Mary Modzyf | 46 | Wife | Janitor | Austria |
| 18 | Roman Jr. Modzyf | 25 | Son | Janitor | Illinois |
| 19 | John Modzyf | 27 | Head | Labor | Illinois |
| 20 | Mary Modzyf | 21 | Wife | Labor | Illinois |
| 21 | Mary Ann Modzyf | 0 | Daughter | — | Illinois |
| 22 | Walter Piotrowski | 62 | Head | Labor | Poland |
| 23 | Stella Piotrowski | 63 | Wife | — | Poland |
| 24 | Roman Piotrowski | 24 | Son | — | Illinois |
| 25 | James Wilson | 34 | Son-in-law | Driver | Illinois |
| 26 | Helen Wilson THIS PERSON | 27 | Daughter | — | Illinois |
| 27 | Anna Marie Wilson | 12 | Daughter | — | Illinois |
| 28 | Lorraine Wilson | 10 | Daughter | — | Illinois |
| 29 | Michael Oprondek | 34 | Head | Trucker | Pennsylvania |
| 30 | Anna Oprondek | 29 | Wife | — | Illinois |
| 31 | Marie Ann Oprondek | 5 | Daughter | — | Illinois |
| 32 | Michael Jr. Oprondek | 2 | Son | — | Illinois |
| 33 | Barbara Oprondek | 0 | Daughter | — | Illinois |
| 34 | Steve Olejniczak | 52 | Head | Elevator Operator | Poland |
| 35 | Theresa Olejniczak | 51 | Wife | — | Austria |
| 36 | Nicholas Matuszczak | 44 | Head | Grinder | Poland |
| 37 | Frances Matuszczak | 37 | Wife | — | Poland |
| 38 | Dorothy Matuszczak | 16 | Daughter | — | Illinois |
| 39 | Richard Matuszczak | 13 | Son | — | Illinois |
| 40 | Jacob Olucky | 49 | Head | Skinner | Austria |
Pedigree Summary
Helen + 3 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)