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Anna Jensen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Anna Jensen across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Elias — first a daughter (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Jensen |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1897 |
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 Anna | Age | Birth yr |
|---|---|---|---|---|
| Arthur Johnson | Son | — | 50 | ~1890 |
| Elias Johnson | Head | — | 80 | ~1860 |
| Anna Jensen | Daughter | — | 43 | ~1897 |
| Arthur Jensen | Other | — | 41 | ~1899 |
Census Appearances
1920
Cook, Illinois
Other, age 24
Cook, Illinois · implied b. ~1896 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Anna |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Other, age 33
Cook, Illinois · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Anna |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 16 |
| 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 43
Cook-County, Illinois · implied b. ~1897 — 4 household members
| Surname | Jensen |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Anna Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elias Johnson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elias Johnson
b. ~1860
Source father
● Household
· direct · ~0.92
This person
Anchor record
Anna Jensen
Daughter · 1940 · age 43 · b. ~1897 · Illinois
★ You are viewing this record
Sibling
Arthur Johnson
Sibling · 1940 · age 50
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-t0627-00983-00297)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elias Johnson | 80 | Head | — | Denmark |
| 2 | Arthur Johnson | 50 | Son | Manager | Denmark |
| 3 | Arthur Jensen | 41 | Son-in-law | Truck Driver | Denmark |
| 4 | Anna Jensen THIS PERSON | 43 | Daughter | — | Illinois |
| 5 | Gerrit Vandenburg | 41 | Head | Sticker Hand | Montana |
| 6 | Alma Vandenburg | 38 | Wife | Operator | Minnesota |
| 7 | Alma Vandenburg | 13 | Daughter | — | Illinois |
| 8 | Marjorie Vandenburg | 12 | Daughter | — | Illinois |
| 9 | Mary Vandenburg | 9 | Daughter | — | Illinois |
| 10 | Ben La Mackin | 58 | Head | — | Russia |
| 11 | Bessie La Mackin | 53 | Wife | — | Russia |
| 12 | Rose La Mackin | 27 | Daughter | Saleslady | Illinois |
| 13 | Bernard Greenwald | 38 | Head | Cigar Store | Russia |
| 14 | Ruth Greenwald | 37 | Wife | — | Poland |
| 15 | William Greenwald | 12 | Son | — | Illinois |
| 16 | Edward Greenwald | 10 | Son | — | Illinois |
| 17 | Rose Greenwald | 5 | Daughter | — | Illinois |
| 18 | Max Greenwald | 58 | Head | Newsstand | Russia |
| 19 | Anna Greenwald | 54 | Wife | — | Russia |
| 20 | Pauline Volanvitch | 21 | Daughter | — | Russia |
| 21 | Joe Volanvitch | 23 | Son-in-law | Frame Maker | Massachusetts |
| 22 | Thomas Racine | 75 | Boarder | Laborer | Russia |
| 23 | Halton Olafson | 35 | Head | Laborer | Norway |
| 24 | Clara Olafson | 39 | Wife | — | Norway |
| 25 | Rollin Eggen | 22 | Step-son | Time Keeper | Norway |
| 26 | Leander Eggen | 20 | Step-son | Soldering | Norway |
| 27 | Borgny Eggen | 18 | Step-daughter | Waitress | Norway |
| 28 | Andrew Konick | 57 | Head | Truck Driver | Czechoslovakia |
| 29 | John Sols | 42 | Head | Cabinet Maker | Norway |
| 30 | Benjamin Rainworth | 31 | Head | Salesman | Illinois |
| 31 | Annette Asaru | 40 | Head | Cabinet Maker | Norway |
| 32 | Anton Skulstad | 40 | Head | Shipping Clerk | Norway |
| 33 | Alfred Mickelson | 33 | Head | Carpenter Helper | Sweden |
| 34 | Louis Isaksen | 51 | Head | Laborer | Norway |
| 35 | Frank Cartwright | 78 | Head | — | Kentucky |
| 36 | Sophie Elliott | 24 | Head | Assembler | Illinois |
| 37 | Annie Reganz | 23 | Head | Sewing Machine | Illinois |
| 38 | Allan Wienke | 33 | Head | Shipping Helper | Sweden |
| 39 | August Saphir | 71 | Head | — | Germany |
| 40 | Sophie Bollen | 66 | Head | — | Illinois |
Pedigree Summary
Anna + 1 sibling
Gen 1 · 1 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)