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Anna Larsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Anna Larsen across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.
Age 58
b. ~1882
Female
Spouse
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Larsen |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1882 |
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 Anna | Age | Birth yr |
|---|---|---|---|---|
| Jorgen Larsen | Head | — | 57 | ~1883 |
| Anna Larsen | Spouse | — | 58 | ~1882 |
| Elda Larsen | Daughter | — | 18 | ~1922 |
Census Appearances
1910
Cook, Illinois
Spouse, age 28
Cook, Illinois · implied b. ~1882 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Denmark |
| Years Married | 7 |
| Children Born | 0 |
| Children Living | 0 |
| Year of Immigration | 1903 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Cook, Illinois
Spouse, age 37
Cook, Illinois · implied b. ~1883 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Anna |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | denmark |
1930
Cook, Illinois
Spouse, age 47
Cook, Illinois · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 19 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Cook-County, Illinois
Spouse, age 58
Cook-County, Illinois · implied b. ~1882 — 3 household members
| Surname | Larsen |
| Given Name | Anna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Anna Larsen across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Anna Larsen
Spouse · 1940 · age 58 · b. ~1882 · 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-t0627-00941-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry Novak | 49 | Head | Pattern Maker | Austria |
| 2 | Anna Novak | 47 | Wife | Ap | Austria |
| 3 | William F. Novak | 26 | Son | Molder | Illinois |
| 4 | Helen A. Novak | 21 | Daughter | Typist | Illinois |
| 5 | Joseph Novak | 19 | Son | New Worker | Illinois |
| 6 | Bernice Novak | 16 | Daughter | — | Illinois |
| 7 | Elmer J. Moore | 40 | Head | Clerk | Illinois |
| 8 | Kathryn Moore | 38 | Wife | — | Illinois |
| 9 | Barbara Moore | 11 | Daughter | — | Illinois |
| 10 | John Moore | 8 | Son | — | Illinois |
| 11 | John Petreder | 58 | Head | Hoisting Engineer | Illinois |
| 12 | Clara Petreder | 55 | Wife | — | Illinois |
| 14 | John Chlumsky | 62 | Head | Manager | Greece |
| 15 | Helen Chlumsky | 52 | Wife | — | Greece |
| 16 | Peter Chlumsky | 24 | Son | Manager | Illinois |
| 17 | Lewis Chlumsky | 22 | Son | Manager | Illinois |
| 18 | Mary Chlumsky | 20 | Daughter | — | Illinois |
| 19 | James Chlumsky | 18 | Son | — | Illinois |
| 20 | Roland Schaefer | 44 | Head | Welder Sup. | Illinois |
| 21 | Dorothy Schaefer | 44 | Wife | — | Illinois |
| 22 | Lois Schaefer | 19 | Daughter | New Worker | Illinois |
| 23 | Robert Schaefer | 18 | Son | — | Illinois |
| 24 | Raymond Taylor | 45 | Head | Loader | Illinois |
| 25 | Verla Taylor | 33 | Wife | Operator | Illinois |
| 26 | Glen Taylor | 4 | Son | — | Illinois |
| 27 | Arlene Taylor | 2 | Daughter | — | Illinois |
| 28 | Chas. Griffin | 69 | Uncle | — | Ohio |
| 29 | Floyd L. Runk | 27 | Head | Minister | Kansas |
| 30 | Florence J. Runk | 28 | Wife | — | California |
| 31 | Jack Hartman | 23 | Head | Crane Operator | Illinois |
| 32 | Hazel Hartman | 52 | Mother | Clerk | Illinois |
| 33 | Emma Peterson | 78 | Mother-in-law | — | Michigan |
| 34 | Jorgen Larsen | 57 | Head | Electrician | Denmark |
| 35 | Anna Larsen THIS PERSON | 58 | Wife | — | Denmark |
| 36 | Elda Larsen | 18 | Daughter | — | Illinois |
| 37 | Leo Polashek | 35 | Head | Superintendent | Illinois |
| 38 | Helen Polashek | 30 | Wife | — | W. Virginia |
| 39 | Charles P. Eger | 25 | Head | Laborer | Indiana |
| 40 | Geraldine Eger | 21 | Wife | — | 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)