EJ
Ella Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ella Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Ella |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 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 City |
| Est. Birth Year | ~1886 |
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 Ella | Age | Birth yr |
|---|---|---|---|---|
| David Johnson | Head | — | 60 | ~1880 |
| George Johnson | Son | — | 23 | ~1917 |
| Elmer Johnson | Son | — | 28 | ~1912 |
| Ella Johnson | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Cook, Illinois
Spouse, age 34
Cook, Illinois · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ella |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Spouse, age 46
Cook, Illinois · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ella |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| 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 |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Veteran | No |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Spouse, age 54
Cook-County, Illinois · implied b. ~1886 — 4 household members
| Surname | Johnson |
| Given Name | Ella |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 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 Ella 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
Ella Johnson
Spouse · 1940 · age 54 · b. ~1886 · 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-t0627-00939-00129)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anton Christopher | 15 | Son | — | Illinois |
| 2 | Louis Christopher | 50 | Brother | — | Italy |
| 3 | Catherine Evans | 61 | Head | — | Wisconsin |
| 4 | Robert Evans | 32 | Son | Laborer | Illinois |
| 5 | Margaret Evans | 22 | Daughter | — | Illinois |
| 6 | Bonnie Evans | 9 | Daughter | — | Illinois |
| 7 | Cornelius Van Kanegan | 46 | Head | Asst Buyer | Illinois |
| 8 | Irene Van Kanegan | 37 | Wife | — | Illinois |
| 9 | Corinne Van Kanegan | 13 | Daughter | — | Illinois |
| 10 | — | None | — | — | — |
| 11 | Victor Bonfiglio | 56 | Head | Laborer | Italy |
| 12 | Antoinette Bonfiglio | 56 | Wife | — | Italy |
| 13 | Siegfried Sather | 52 | Head | Carpenter | Sweden |
| 14 | Alina Sather | 43 | Wife | — | Illinois |
| 15 | Lenys Sather | 16 | Son | Welder | Illinois |
| 16 | Judith A. Sather | 14 | Daughter | — | Illinois |
| 17 | Lillian S. Sather | 10 | Daughter | — | Illinois |
| 18 | Eugene Sather | 2 | Son | — | Illinois |
| 19 | August Valley | 59 | Head | Upholsterer | Sweden |
| 20 | Anna Valley | 56 | Wife | — | Sweden |
| 21 | Greta Valley | 24 | Daughter | Stenographer | Illinois |
| 22 | Joseph Cahoon | 46 | Head | Carpenter | Lithuania |
| 23 | Valerie Cahoon | 41 | Wife | Housework | Lithuania |
| 24 | Almart Cahoon | 13 | Son | — | Illinois |
| 25 | David Johnson | 60 | Head | Carpenter | Sweden |
| 26 | Ella Johnson THIS PERSON | 54 | Wife | — | Sweden |
| 27 | Elmer Johnson | 28 | Son | Steel Inspector | Illinois |
| 28 | George Johnson | 23 | Son | Office Clerk | Illinois |
| 29 | Henry C. Dietz | 45 | Head | Travel. Finisher | Illinois |
| 30 | Josephine Dietz | 45 | Wife | — | Illinois |
| 31 | Dorothy Anostrom | 19 | Daughter | — | Illinois |
| 32 | Wayne Anostrom | 13 | Son | — | Illinois |
| 33 | Raymond Anostrom | 25 | Son | Shipping Clerk | Illinois |
| 34 | Sarah Mc Gurn | 75 | Mother-in-law | — | Illinois |
| 35 | Albert Mc Arthur | 42 | Head | Carpenter | Scotland |
| 36 | Jeanie Mc Arthur | 40 | Wife | — | Scotland |
| 37 | Margaret Mc Arthur | 18 | Daughter | Sales Clerk | Scotland |
| 38 | Howard Pierson | 30 | Head | Police Officer | Wisconsin |
| 39 | Lena Pierson | 60 | Mother | — | Missouri |
| 40 | Lillian Dickinson | 29 | Sister | — | Wisconsin |
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)