EP
Ethel Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ethel Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Oscar — first a daughter (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | City of Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Sales Clerk |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Sales Clerk |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1916 |
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 Ethel | Age | Birth yr |
|---|---|---|---|---|
| Charles Peterson | Head | — | 69 | ~1871 |
| Anna Peterson | Spouse | — | 67 | ~1873 |
| Ethel Peterson | Daughter | — | 24 | ~1916 |
Census Appearances
1920
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 12
Cook, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 24
Cook-County, Illinois · implied b. ~1916 — 3 household members
| Surname | Peterson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | City of Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Sales Clerk |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 500 |
| 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 Ethel Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Peterson (~0.92 confidence) and father Oscar Peterson (~0.92 confidence) and father Oscar Peterson (~0.92 confidence) and mother Anna Peterson (~0.92 confidence) and mother Sarah Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Peterson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Oscar Peterson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Oscar Peterson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Anna Peterson
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Sarah Peterson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ethel Peterson
Daughter · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
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
35 people indexed on this census page (nara:1940:m-t0627-00988-00294)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Dillem | 30 | Head | Payroll Clerk | Nebraska |
| 2 | Mary Dillem | 29 | Wife | Seamstress | Missouri |
| 3 | Joseph Solocki | 27 | Head | Machinist | Wisconsin |
| 4 | Hazel Solocki | 21 | Wife | — | Illinois |
| 5 | Frank Joyce | 46 | Head | Janitor | Illinois |
| 6 | Agnes Joyce | 31 | Wife | Waitress | Illinois |
| 7 | Michael Jr Spivay | 27 | Head | Operator | Indiana |
| 8 | Helen Spivay | 26 | Wife | Seamstress | Illinois |
| 9 | Paul Koper | 27 | Head | Foreman | Illinois |
| 10 | Anne Koper | 25 | Wife | Assembler | Illinois |
| 11 | William Warren | 57 | Head | Proprietor | Iowa |
| 12 | Margaret Warren | 59 | Wife | Waitress | Iowa |
| 17 | Earl Townsend | 36 | Head | Polisher | Illinois |
| 18 | Irene Townsend | 36 | Wife | — | Illinois |
| 19 | Arlene Townsend | 5 | Daughter | — | Illinois |
| 21 | Mary Lundstrom | 75 | Head | — | Sweden |
| 22 | Charles Peterson | 69 | Head | — | Sweden |
| 23 | Anna Peterson | 67 | Wife | — | Sweden |
| 24 | Ethel Peterson THIS PERSON | 24 | Daughter | Sales Clerk | Illinois |
| 25 | Harry Mcinnes | 21 | Head | Painter | Illinois |
| 26 | Mary Louise Mcinnes | 21 | Wife | Binder | Illinois |
| 27 | Liborio Musolo | 49 | Head | Laborer | Italy |
| 28 | Angela Musolo | 50 | Wife | — | Illinois |
| 29 | Andrew Thompson | 24 | Head | Enrober Man | Illinois |
| 30 | Jean Thompson | 22 | Wife | — | Illinois |
| 31 | Richard Thompson | 4 | Son | — | Illinois |
| 32 | Robert Thompson | 0 | Son | — | Illinois |
| 33 | John Gush | 27 | Head | Chauffeur | Illinois |
| 34 | Lillian Gush | 23 | Wife | — | Illinois |
| 35 | Lorraine Gush | 5 | Daughter | — | Illinois |
| 36 | Lillian Gush | 4 | Daughter | — | Illinois |
| 37 | Theodore Pusalewski | 42 | Head | Metal Worker | Illinois |
| 38 | Mary Pusalewski | 43 | Wife | — | Illinois |
| 39 | Henry Pusalewski | 22 | Son | Shipping Clerk | Illinois |
| 40 | Edward Pusalewski | 20 | Son | Spool Boy | Illinois |
Pedigree Summary
Ethel
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)