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Bertha Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Bertha Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 4-person household.
Age 53
b. ~1887
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Peterson |
| Given Name | Bertha E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1887 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Harry Peterson | Son | — | 21 | ~1919 |
| Frank Peterson | Head | — | 53 | ~1887 |
| Clara Peterson | Other | — | 23 | ~1917 |
| Bertha Peterson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Cook, Illinois
Spouse, age 32
Cook, Illinois · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Spouse, age 42
Cook, Illinois · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 28 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 53
Cook-County, Illinois · implied b. ~1887 — 4 household members
| Surname | Peterson |
| Given Name | Bertha E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Bertha Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Peterson
Spouse · 1940 · age 53 · b. ~1887 · Illinois
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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-t0627-01014-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martha E. Paschke | 61 | Wife | — | Germany |
| 2 | George A. Paschke | 37 | Son | Pressman | Illinois |
| 3 | Arnold B. Ladewig | 42 | Head | Jeweler | Germany |
| 4 | Hattie M. Ladewig | 40 | Wife | — | Illinois |
| 5 | Ruth A. Ladewig | 14 | Daughter | — | Illinois |
| 6 | Dorothy M. Ladewig | 12 | Daughter | — | Illinois |
| 7 | Marion F. Ladewig | 12 | Daughter | — | Illinois |
| 8 | Henry W. Busch | 58 | Head | Photo Engraver | Germany |
| 9 | Harriet Busch | 36 | Wife | — | Illinois |
| 10 | Harry J. Busch | 11 | Son | — | Illinois |
| 11 | Eric W. Johnson | 46 | Lodger | Plumber | Sweden |
| 12 | Herman O. Seeger | 62 | Head | Plumber | Wisconsin |
| 13 | Lora A. Seeger | 62 | Wife | — | Illinois |
| 14 | Elinor Seeger | 38 | Daughter | Assembler | Illinois |
| 15 | Caroline Heer | 48 | Head | — | Illinois |
| 16 | Magdaline Heer | 52 | Sister | — | Illinois |
| 17 | Leo Konzora | 60 | Head | — | Germany |
| 18 | Martha Konzora | 57 | Wife | — | Germany |
| 19 | John F. Konzora | 34 | Son | Bookkeeper | Illinois |
| 20 | Martha A. Ludwig | 37 | Daughter | — | Illinois |
| 21 | Jerome H. Ludwig | 10 | Grandson | — | Illinois |
| 22 | Robert J. Ludwig | 8 | Grandson | — | Illinois |
| 23 | Walter J. Gorney | 33 | Head | Sales Clerk | Illinois |
| 24 | Hulda L. Gorney | 30 | Wife | — | Illinois |
| 25 | Richard W. Gorney | 2 | Son | — | Illinois |
| 26 | Florence D. Jepson | 16 | Niece | — | Illinois |
| 27 | Amile F. Bredlow | 54 | Head | Painter | Illinois |
| 28 | Florence A. Bredlow | 52 | Wife | — | Illinois |
| 29 | William F. Hogan | 27 | Head | Laundry Man | Illinois |
| 30 | Marion G. Hogan | 24 | Wife | — | Illinois |
| 31 | Fred W. Boerner | 74 | Father in law | — | Illinois |
| 32 | Joseph H. Mallow | 55 | Head | Police Sargent | Illinois |
| 33 | Lydia E. Mallow | 49 | Wife | — | Illinois |
| 34 | Frank O. Peterson | 53 | Head | Stone Cutter | Sweden |
| 35 | Bertha E. Peterson THIS PERSON | 53 | Wife | — | Illinois |
| 36 | Harry A. Peterson | 21 | Son | Inspector | Illinois |
| 37 | Clara Peterson | 23 | Daughter in law | Beauty Operator | Illinois |
| 38 | George J. Uselding | 46 | Head | Helper | Illinois |
| 39 | Agnes E. Uselding | 45 | Wife | — | Illinois |
| 40 | Kenneth T. Uselding | 17 | Son | — | Illinois |
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)