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Helen Kennedy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Helen Kennedy across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Catherine — first a daughter (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kennedy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Wholesale Lumber Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Ethel Kennedy | Daughter | — | 23 | ~1917 |
| Catherine Kennedy | Spouse | — | 61 | ~1879 |
| Helen Kennedy | Daughter | — | 30 | ~1910 |
Census Appearances
1910
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 10
Cook, Illinois · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 20
Cook, Illinois · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | stenographer |
| Industry | batteries office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 30
Cook-County, Illinois · implied b. ~1910 — 3 household members
| Surname | Kennedy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Stenographer |
| Industry | Wholesale Lumber Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | H-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 Helen Kennedy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Kennedy (~0.92 confidence) and mother Catherine Kennedy (~0.92 confidence) and father William Kennedy (~0.92 confidence) and father William Kennedy (~0.92 confidence) and mother Flora Kennedy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Kennedy
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Catherine Kennedy
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
William Kennedy
b. ~1881
Source father
● Household
· direct · ~0.92
Father
William Kennedy
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Flora Kennedy
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Kennedy
Daughter · 1940 · age 30 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Ethel Kennedy
Sibling · 1940 · age 23
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-t0627-00943-00458)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine Kennedy | 61 | Wife | — | Illinois |
| 42 | Helen Kennedy THIS PERSON | 30 | Daughter | Stenographer | Illinois |
| 43 | Ethel Kennedy | 23 | Daughter | Stenographer | Illinois |
| 44 | Matus Kazeika | 55 | Head | Pressman | Lithuania |
| 45 | Anna Kazeika | 47 | Wife | — | Lithuania |
| 46 | Anthony Kazeika | 25 | Son | — | Illinois |
| 47 | Edward Kazeika | 24 | Son | — | Illinois |
| 48 | Stanley Blazejewicz | 50 | Head | Common Laborer | Poland |
| 49 | Frances Blazejewicz | 47 | Wife | Proprietor | Poland |
| 50 | Zigfried Blazejewicz | 25 | Son | Pantry Boy | Illinois |
| 51 | Irene Blazejewicz | 25 | Daughter | Hat Designer | Illinois |
| 52 | Myrle Blazejewicz | 24 | Son | Machinist Helper | Illinois |
| 53 | Helen Blazejewicz | 22 | Daughter | Mail Checker | Illinois |
| 54 | Louis Kalaians | 51 | Head | — | Lithuania |
| 55 | Anne Kalaians | 51 | Wife | — | Lithuania |
| 56 | Stella Zacauska | 25 | Daughter | Remnant Office Worker | Illinois |
| 57 | Louis Zacauska | 25 | Son-in-law | Eye Doctor | Illinois |
| 58 | Bernice Kupetis | 31 | Daughter | Waitress | Illinois |
| 59 | Patrick Carroll | 60 | Head | Common Laborer | Eire |
| 60 | Nora Carroll | 52 | Wife | — | Eire |
| 61 | Catherine Carroll | 22 | Daughter | Remnant Office Worker | Illinois |
| 62 | Elizabeth Carroll | 18 | Daughter | — | Illinois |
| 63 | Nella Carroll | 16 | Daughter | — | Illinois |
| 64 | Cornelius Murray | 63 | Head | Clerk | Illinois |
| 65 | Jenny Murray | 65 | Wife | — | Illinois |
| 66 | William Murray | 67 | Brother | Inspector | Illinois |
| 67 | Louis Shelten | 79 | Head | — | Germany |
| 68 | Albert Shelten | 39 | Son | Tapper | Illinois |
| 69 | William Shelten | 50 | Nephew | — | Illinois |
| 70 | Joseph Pank | 30 | Head | Serviceman | Illinois |
| 71 | Eva Pank | 30 | Wife | — | Michigan |
| 72 | Robert Shorbury | 9 | Nephew | — | Michigan |
| 73 | Camille Clark | 27 | Head | Painter | Wisconsin |
| 74 | Isabelle Clark | 24 | Wife | — | Illinois |
| 75 | David Clark | 4 | Son | — | Illinois |
| 76 | Richard Clark | 2 | Son | — | Illinois |
| 77 | Melvin Clark | 0 | Son | — | Illinois |
| 78 | John Zhinkey | 55 | Head | Common Laborer | Lithuania |
| 79 | Bernice Zhinkey | 40 | Wife | — | Lithuania |
| 80 | Albert Zhinkey | 7 | Son | — | Illinois |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 5 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)