EJ
Ellen Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ellen Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Chicago |
| Est. Birth Year | ~1899 |
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 Ellen | Age | Birth yr |
|---|---|---|---|---|
| Oscar Johnson | Head | — | 42 | ~1898 |
| Norman Johnson | Son | — | 9 | ~1931 |
| Harold Johnson | Son | — | 11 | ~1929 |
| Ellen Johnson | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Cook, Illinois
Other, age 22
Cook, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ellen |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Finland |
| Year of Immigration | 1919 |
| Naturalization Status | Alien |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Tailoress |
| Industry | Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Cook, Illinois
Other, age 32
Cook, Illinois · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ellen M |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1910 |
| Age at First Marriage | 29 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Cook-County, Illinois
Spouse, age 41
Cook-County, Illinois · implied b. ~1899 — 4 household members
| Surname | Johnson |
| Given Name | Ellen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Ellen 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
Ellen Johnson
Spouse · 1940 · age 41 · b. ~1899 · 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-t0627-00994-00728)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emmett O'Brien | 25 | Son | Gateman | Illinois |
| 42 | Oscar Johnson | 42 | Head | Glass Blower | Norway |
| 43 | Ellen Johnson THIS PERSON | 41 | Wife | — | Finland |
| 44 | Harold Johnson | 11 | Son | — | Michigan |
| 45 | Norman Johnson | 9 | Son | — | Illinois |
| 46 | Loy A. Gallen | 37 | Head | Civil Engineer | Illinois |
| 47 | Virginia Gallen | 27 | Wife | Stenographer | Illinois |
| 48 | Alvin Cornell | 48 | Head | Fireman | Illinois |
| 49 | Marie Cornell | 41 | Wife | — | Illinois |
| 50 | Thomas Cornell | 13 | Son | — | Illinois |
| 51 | Charles Riley | 48 | Boarder | Waiter | Illinois |
| 52 | Walter Lundquist | 35 | Head | Chemist | Michigan |
| 53 | Clara Lundquist | 40 | Wife | — | Wisconsin |
| 54 | John Lundquist | 7 | Son | — | Wisconsin |
| 55 | Mary Lundquist | 8 | Daughter | — | Illinois |
| 56 | Stella Murphy | 43 | Head | Comptometer Operator | Wisconsin |
| 57 | Ernest Diehl | 37 | Head | Engraver | Illinois |
| 58 | Charlotte Diehl | 35 | Wife | — | Illinois |
| 59 | Ralph Diehl | 12 | Son | — | Illinois |
| 60 | John Dolce | 33 | Head | Superintendent | Italy |
| 61 | Mae Dolce | 30 | Wife | — | Illinois |
| 62 | John Jr. Dolce | 4 | Son | — | Illinois |
| 63 | Raymond E. Dwight | 41 | Head | Fireman | Illinois |
| 64 | Mary G. Dwight | 47 | Wife | — | Wisconsin |
| 65 | Dolores M. Dwight | 14 | Daughter | — | Illinois |
| 66 | Lena Onetti | 56 | Head | — | Illinois |
| 67 | Fred Onetti | 40 | Son | — | Illinois |
| 68 | Joseph La Casa | 46 | Head | Toolmaker | Italy |
| 69 | Katherine La Casa | 46 | Wife | — | Italy |
| 70 | Joseph Jr. La Casa | 19 | Son | — | Illinois |
| 71 | Angela La Casa | 16 | Daughter | — | Illinois |
| 72 | James La Casa | 9 | Son | — | Illinois |
| 73 | Rachel Bisaglia | 41 | Mother-in-law | — | Illinois |
| 74 | Harry Peterson | 46 | Head | Contractor | Illinois |
| 75 | Elsie Peterson | 45 | Wife | — | Illinois |
| 76 | Estelle Peterson | 19 | Daughter | Cashier | Illinois |
| 77 | Lloyd Peterson | 15 | Son | — | Illinois |
| 78 | Stewart Peterson | 12 | Son | — | Illinois |
| 79 | Rocco Padulo | 58 | Head | Janitor | Italy |
| 80 | Rose Padulo | 50 | Wife | — | Italy |
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)