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Bertha Anderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Bertha Anderson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Anderson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Chicago |
| Est. Birth Year | ~1890 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Anton Anderson | Head | — | 56 | ~1884 |
| Elmer Anderson | Son | — | 24 | ~1916 |
| Bertha Anderson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Cook, Illinois
Other, age 30
Cook, Illinois · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Bertha |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1910 |
| Naturalization Status | Un |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Servant |
| Industry | Private |
| Class of Worker | S |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Other, age 40
Cook, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Bertha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Spouse, age 50
Cook-County, Illinois · implied b. ~1890 — 3 household members
| Surname | Anderson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Anderson 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 Anderson
Spouse · 1940 · age 50 · b. ~1890 · 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
39 people indexed on this census page (nara:1940:m-t0627-00952-00136)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Kromer | 43 | Wife | — | Illinois |
| 2 | Helmar Kromer | 10 | Son | — | Illinois |
| 3 | John Schmecki | 34 | Head | Repairman | Illinois |
| 4 | Florida Schmecki | 32 | Wife | — | Illinois |
| 5 | Robert Schmecki | 11 | Son | — | Illinois |
| 6 | Raymond Schmecki | 10 | Son | — | Illinois |
| 7 | Corrine Schmecki | 6 | Daughter | — | Illinois |
| 8 | Arthur Hall | 28 | Head | Rate Clerk | Illinois |
| 9 | Beatrice Hall | 25 | Wife | — | Illinois |
| 10 | Judith Hall | 4 | Daughter | — | Illinois |
| 11 | Carroll J. Hall | 1 | Daughter | — | Illinois |
| 12 | Anton Anderson | 56 | Head | Screen Maker | Sweden |
| 13 | Bertha Anderson THIS PERSON | 50 | Wife | — | Sweden |
| 14 | Elmer Anderson | 24 | Son | Clerk | Illinois |
| 15 | Frank Rockaitis | 49 | Head | Chipper | Lithuania |
| 16 | Antonia Rockaitis | 49 | Wife | — | Lithuania |
| 17 | Mary Rockaitis | 25 | Daughter | Coiler | Pennsylvania |
| 18 | Edward Rockaitis | 18 | Son | — | Wisconsin |
| 19 | Jack Rockaitis | 16 | Son | — | Wisconsin |
| 20 | Joe Rockaitis | 24 | Son | Trimmer | Pennsylvania |
| 21 | Genevieve Rockaitis | 22 | Daughter-in-law | — | Illinois |
| 22 | Joseph Rockaitis | 3 | Grandson | — | Illinois |
| 23 | Albert Schmecki | 17 | Lodger | — | Michigan |
| 24 | John Haggas | 25 | Head | Laborer | Illinois |
| 25 | Anna M. Haggas | 21 | Wife | — | Illinois |
| 26 | Mary J. Haggas | 5 | Daughter | — | Illinois |
| 27 | Stanley Miza | 27 | Head | Machinist | Germany |
| 28 | Mildred Miza | 26 | Wife | — | Illinois |
| 29 | Robert Miza | 7 | Son | — | Illinois |
| 30 | Walter Dowdy | 43 | Head | Truck Driver | Pennsylvania |
| 31 | Francis Dowdy | 40 | Wife | — | Missouri |
| 32 | Irene Dowdy | 25 | Daughter | Laborer | Illinois |
| 33 | Thomas Dowdy | 20 | Son | New Worker | Illinois |
| 34 | Edward Dowdy | 18 | Son | New Worker | Illinois |
| 35 | Daniel Monnaville | 53 | Head | Welder | Italy |
| 36 | Theresa Monnaville | 46 | Wife | — | Italy |
| 37 | Rose Monnaville | 21 | Daughter | Stenographer | Illinois |
| 38 | Daniel Jr. Monnaville | 8 | Son | — | Illinois |
| 39 | Paul Doring | 46 | Head | Metal Polisher / Buffer | 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)