JJ
Jennie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Jennie Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 3-person household.
Age 49
b. ~1891
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same home |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1891 |
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 Jennie | Age | Birth yr |
|---|---|---|---|---|
| Conrad Johnson | Head | — | 48 | ~1892 |
| Roy Johnson | Son | — | 17 | ~1923 |
| Jennie Johnson | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Cook, Illinois
Other, age 27
Cook, Illinois · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jennie |
| Relationship to Head | Maid |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Sweden |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Maid |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Other, age 38
Cook, Illinois · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jennie |
| Relationship to Head | Maid |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Sweden |
| Naturalization Status | Alien |
| Year of Immigration | 1923 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Maid |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Spouse, age 49
Cook-County, Illinois · implied b. ~1891 — 3 household members
| Surname | Johnson |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | 6 |
| 1935 Residence | Same home |
| 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 Jennie Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Jennie Johnson
Spouse · 1940 · age 49 · b. ~1891 · 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-t0627-01004-00487)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Johnson | 36 | Head | Accountant | Iowa |
| 42 | Ella Johnson | 36 | Wife | — | Iowa |
| 43 | Donald Johnson | 2 | Son | — | Illinois |
| 44 | Malinda Linn | 68 | Mother-in-law | — | Iowa |
| 45 | William Murphy | 43 | Head | Investigator | Illinois |
| 46 | Edna Murphy | 44 | Wife | — | Michigan |
| 47 | Mary Murphy | 5 | Daughter | — | Illinois |
| 48 | Isabel Vandervort | 35 | Sister-in-law | Comptometer | Michigan |
| 49 | April Schultz | 39 | Head | Buyer | Illinois |
| 50 | Ethel Schultz | 36 | Wife | — | Illinois |
| 51 | Hans Lundeberg | 64 | Father-in-law | — | Denmark |
| 52 | Marie Lundeberg | 71 | Mother-in-law | — | Norway |
| 53 | Thomas Beelach | 45 | Head | Patrolman | Illinois |
| 54 | Pearl Beelach | 45 | Wife | — | Illinois |
| 55 | Ernest Beelach | 21 | Son | — | Illinois |
| 56 | Daniel Beelach | 15 | Son | — | Illinois |
| 57 | Enda Hess | 39 | Boarder | — | Virginia |
| 59 | Axel Peterson | 49 | Head | Coat Maker | Sweden |
| 60 | Anna Peterson | 44 | Wife | — | Sweden |
| 61 | Edward Peterson | 16 | Son | — | Illinois |
| 62 | Robert Peterson | 10 | Son | — | Illinois |
| 63 | Conrad Johnson | 48 | Head | Sheet Metal Worker | Sweden |
| 64 | Jennie Johnson THIS PERSON | 49 | Wife | — | Sweden |
| 65 | Roy Johnson | 17 | Son | — | Illinois |
| 66 | John Johnson | 57 | Head | Machinist | Sweden |
| 67 | Hulda Johnson | 47 | Wife | — | Sweden |
| 68 | Herbert Berg | 49 | Head | Steam Fitter | Illinois |
| 69 | Sophia Berg | 43 | Wife | — | Illinois |
| 70 | Thomas Berg | 13 | Son | — | Illinois |
| 71 | Frank Lechert | 47 | Head | Salesman | Illinois |
| 72 | Marie Lechert | 46 | Wife | — | Illinois |
| 73 | Courtney Lechert | 22 | Son | Assembler | Illinois |
| 74 | Kenneth Lechert | 20 | Son | Laborer | Illinois |
| 75 | Max Roch | 50 | Head | Bridge Foreman | Illinois |
| 76 | Jennie Roch | 48 | Wife | — | Illinois |
| 77 | Harold Roch | 15 | Son | — | Illinois |
| 78 | David Mckenzie | 38 | Head | Sales Manager | Illinois |
| 79 | Virginia Mckenzie | 37 | Wife | — | Illinois |
| 80 | Jean Mckenzie | 13 | Daughter | — | 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)