AP
Alice Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Alice Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Adolph & Mathilda — first a daughter (b.~1898), then head of a 2-person household.
Age 42
b. ~1898
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Accountant |
| Industry | Merchant Tailors |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Accountant |
| Township / Ward | Chicago |
| Est. Birth Year | ~1898 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alice | Age | Birth yr |
|---|---|---|---|---|
| Alice Peterson | Daughter | — | 42 | ~1898 |
| Gustaf Peterson | Head | — | 69 | ~1871 |
Census Appearances
1920
Cook, Illinois
Daughter, age 22
Cook, Illinois · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 32
Cook, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Accountant |
| Industry | Merchant Tailors |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 42
Cook-County, Illinois · implied b. ~1898 — 2 household members
| Surname | Peterson |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Accountant |
| Industry | Merchant Tailors |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | Hs 2 |
| 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 Alice Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Peterson (~0.92 confidence) and mother Mathilda Peterson (~0.92 confidence) and father Gust Peterson (~0.92 confidence) and father Gustaf Peterson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Peterson
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Mathilda Peterson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Gust Peterson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Gustaf Peterson
b. ~1871
Source father
● Household
· direct · ~0.92
This person
Anchor record
Alice Peterson
Daughter · 1940 · age 42 · b. ~1898 · 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
40 people indexed on this census page (nara:1940:m-t0627-00995-00724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louis De Witt | 85 | Head | — | New York |
| 42 | Alice De Witt | 75 | Wife | — | Irish-Free-State |
| 43 | Andor Nogrady | 46 | Head | Mechanical Engineer | Pennsylvania |
| 44 | Jessie Nogrady | 45 | Wife | — | Kansas |
| 45 | Andrew Nogrady | 23 | Son | Chemical Engineer | Kansas |
| 46 | Andor Nogrady | 21 | Son | Usher | Kansas |
| 47 | Colman Nogrady | 19 | Son | Machine Designer | Michigan |
| 48 | Gerald J. Van Bladel | 58 | Head | Administrator | Holland |
| 49 | Henrietta Van Bladel | 53 | Wife | — | Holland |
| 50 | Edwin Van Bladel | 22 | Son | — | Illinois |
| 51 | Harry Hawking | 52 | Head | Machinist | Illinois |
| 52 | Genevieve Hawking | 44 | Wife | Salesperson | Wisconsin |
| 53 | Harry Hawking | 20 | Son | Loader | Illinois |
| 54 | Robert Hawking | 19 | Son | Wrapper | Illinois |
| 55 | Daniel Hawking | 17 | Son | Newsboy | Illinois |
| 56 | Lewis Lloyd | 36 | Head | Decorator | Wales |
| 57 | Helena Lloyd | 43 | Wife | — | Wales |
| 58 | Evangeline Lloyd | 10 | Daughter | — | Illinois |
| 59 | Arthur Lloyd | 7 | Son | — | Illinois |
| 60 | Gustaf Peterson | 69 | Head | Cement Contractor | Sweden |
| 61 | Alice Peterson THIS PERSON | 42 | Daughter | Accountant | Illinois |
| 62 | Marie Lindelsee | 48 | Head | — | Illinois |
| 63 | Frank O'Hara | 34 | Head | Biller | Illinois |
| 64 | Elizabeth O'Hara | 33 | Wife | — | Italy |
| 65 | Donald O'Hara | 5 | Son | — | Illinois |
| 66 | Judith O'Hara | 1 | Daughter | — | Illinois |
| 67 | Henry Treasurer | 55 | Head | Lithographic Pressman | England |
| 68 | Ellen M. Treasurer | 44 | Wife | — | Missouri |
| 69 | Hazel Treasurer | 18 | Daughter | Stenographer | Illinois |
| 70 | George P. Law | 55 | Head | Mechanic | New York |
| 71 | Anna Law | 50 | Wife | — | Illinois |
| 72 | Ruth Law | 22 | Daughter | Stenographer | Illinois |
| 73 | Kathryn Law | 20 | Daughter | Stenographer | Illinois |
| 74 | Ralph Law | 12 | Son | — | Illinois |
| 75 | Axtell Olsen | 55 | Head | Construction Engineer | Norway |
| 76 | Carrie Olsen | 53 | Wife | — | Illinois |
| 77 | Wieland Olsen | 24 | Son | Chemical Engineer | Illinois |
| 78 | John A. Johnson | 62 | Head | Section Chief | Norway |
| 79 | Marie Johnson | 58 | Wife | — | Norway |
| 80 | James E. Johnson | 20 | Son | Stock Boy | Illinois |
Pedigree Summary
Alice
Gen 1 · 4 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)