EP
Evelyn Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Evelyn Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Arthur & Charles — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 0 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1915 |
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 Evelyn | Age | Birth yr |
|---|---|---|---|---|
| Martha England | Other | — | 74 | ~1866 |
| Charles Peterson | Head | — | 41 | ~1899 |
| Bruce Peterson | Son | — | 5 | ~1935 |
| Evelyn Peterson | Daughter | — | 25 | ~1915 |
| Anne Peterson | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Cook, Illinois
Daughter, age 4
Cook, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 25
Cook-County, Illinois · implied b. ~1915 — 5 household members
| Surname | Peterson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 0 |
| 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 Evelyn Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Peterson (~0.92 confidence) and father Charles Peterson (~0.92 confidence) and mother Anne Peterson (~0.60 confidence) and mother Mabel Peterson (~0.92 confidence) and mother Mabelle Peterson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Arthur Peterson
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Charles Peterson
b. ~1899
Source father
● Household
· direct · ~0.92
Mother
Anne Peterson
b. ~1903
Source mother
● Household
· direct · ~0.6
Mother
Mabel Peterson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mabelle Peterson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Evelyn Peterson
Daughter · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Bruce Peterson
Sibling · 1940 · age 5
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-t0627-01011-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace Mcclughry | 17 | Daughter | — | Illinois |
| 2 | Frank Sullivan | 50 | Head | Stationary Engineer | Illinois |
| 3 | Dorothy Sullivan | 44 | Wife | — | Illinois |
| 4 | Joseph Sullivan | 18 | Son | — | Illinois |
| 5 | Cornelius Sullivan | 16 | Son | — | Illinois |
| 6 | Donald Sullivan | 14 | Son | — | Illinois |
| 7 | Edward Sullivan | 12 | Son | — | Illinois |
| 8 | Roger Sullivan | 7 | Son | — | Illinois |
| 9 | Michael Sullivan | 4 | Son | — | Illinois |
| 10 | Helen B. Sullivan | 52 | Sister | Stenographer | Illinois |
| 11 | Catherine Korb | 65 | Head | Seamstress | Germany |
| 12 | Emil Rueff | 41 | Head | Sales Clerk | Illinois |
| 13 | Della Rueff | 40 | Wife | — | Illinois |
| 14 | Shirley Rueff | 14 | Daughter | — | Illinois |
| 15 | Charles Peterson | 41 | Head | Machinist | Sweden |
| 16 | Anne Peterson | 37 | Wife | — | Sweden |
| 17 | Bruce Peterson | 5 | Son | — | Illinois |
| 18 | Martha England | 74 | Mother-in-law | — | Sweden |
| 19 | Evelyn Peterson THIS PERSON | 25 | Daughter | — | Illinois |
| 20 | Joseph Dangl | 55 | Head | Watchman | Austria |
| 21 | Pauline Dangl | 57 | Wife | — | Austria |
| 22 | Caroline Dangl | 21 | Daughter | Office Clerk | Illinois |
| 23 | Pauline Dangl | 18 | Daughter | Office Clerk | Illinois |
| 24 | James Romano | 29 | Head | Chauffeur | Pennsylvania |
| 25 | Jeanette Romano | 23 | Wife | — | Illinois |
| 26 | Rosemary Romano | 1 | Daughter | — | Illinois |
| 27 | Charles Scatena | 71 | Head | Chef | Italy |
| 28 | Frances Scatena | 63 | Wife | — | Italy |
| 29 | John Anen | 53 | Head | Carpenter | Illinois |
| 30 | Alice Anen | 50 | Wife | — | Illinois |
| 31 | George Anen | 18 | Son | Shipping Clerk | Illinois |
| 32 | Edward Anen | 13 | Son | — | Illinois |
| 33 | Clara Freimuth | 39 | Head | Stenographer | Illinois |
| 34 | Fred Freimuth | 53 | Brother | Plumber | Illinois |
| 35 | Barney Gately | 53 | Head | Engineer | Illinois |
| 36 | Catherine Gately | 54 | Wife | — | Illinois |
| 37 | Marguerite Gately | 32 | Daughter | — | Illinois |
| 38 | Leo Gately | 27 | Son | Factory Hand | Illinois |
| 39 | Philip Uterhart | 27 | Head | Research Worker | Germany |
| 40 | Lorraine Uterhart | 26 | Wife | — | Illinois |
Pedigree Summary
Evelyn + 1 sibling
Gen 1 · 5 parents
~0.86
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)