EJ
Ernest Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ernest Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Alfred — first a son (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Spot Welder |
| Industry | Steel Cabinet |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Spot Welder |
| Township / Ward | Chicago |
| Est. Birth Year | ~1900 |
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 Ernest | Age | Birth yr |
|---|---|---|---|---|
| Alfred Johnson | Head | — | 76 | ~1864 |
| Ernest Johnson | Son | — | 40 | ~1900 |
| Elmer Johnson | Son | — | 36 | ~1904 |
| Amelia Johnson | Spouse | — | 73 | ~1867 |
Census Appearances
1910
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 18
Cook, Illinois · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ernest G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Driver |
| Industry | Milk wagon |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 29
Cook, Illinois · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ernest Wm. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | 29 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Veteran | 33 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 40
Cook-County, Illinois · implied b. ~1900 — 4 household members
| Surname | Johnson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Spot Welder |
| Industry | Steel Cabinet |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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 Ernest Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father Alfred Johnson (~0.92 confidence) and father Gustave Johnson (~0.92 confidence) and mother Amelia Johnson (~0.92 confidence) and mother Ella Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1861
Source father
● Household
· direct · ~0.92
Father
Alfred Johnson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Gustave Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Amelia Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Ella Johnson
b. ~1872
Source mother
● Household
· direct · ~0.92
Father
John Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ernest Johnson
Son · 1940 · age 40 · b. ~1900 · Illinois
★ You are viewing this record
Sibling
Elmer Johnson
Sibling · 1940 · age 36
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-t0627-00981-00565)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Nylin | 40 | Lodger | Carpenter | Sweden |
| 2 | Julius Lueck | 73 | Head | Electrician | Germany |
| 3 | Emma Lueck | 60 | Wife | — | Illinois |
| 4 | Rudolph Lueck | 36 | Son | Chemist | Illinois |
| 5 | William Eichem | 23 | Head | Carpenter | Illinois |
| 6 | Irene Eichem | 25 | Wife | — | Illinois |
| 7 | Larry Eichem | 3 | Son | — | Illinois |
| 8 | Cleo Eichem | 0 | Daughter | — | Illinois |
| 9 | Peter Loftis | 70 | Head | — | Germany |
| 10 | Rose Loftis | 50 | Wife | — | Illinois |
| 11 | John Davis | 71 | Lodger | — | Scotland |
| 12 | James Gillespie | 56 | Head | Printer | Scotland |
| 13 | Pearl Gillespie | 46 | Wife | — | Missouri |
| 14 | James J. Gillespie | 16 | Son | — | Illinois |
| 15 | Ralph Vogel | 50 | Head | Baker | Germany |
| 16 | Pauline Vogel | 43 | Wife | — | Germany |
| 17 | Anna Vogel | 16 | Daughter | — | Illinois |
| 18 | Dorothy Vogel | 10 | Daughter | — | Illinois |
| 19 | Ralph Vogel | 8 | Son | — | Illinois |
| 20 | Gordon Vogel | 5 | Son | — | Illinois |
| 21 | Winifred Hammar | 61 | Head | — | Sweden |
| 22 | Frederick Eade | 52 | Head | Bailiff | Iowa |
| 23 | Laura Eade | 52 | Wife | — | Minnesota |
| 24 | Edwin Eade | 27 | Son | Cashier | Illinois |
| 25 | James Arnott | 37 | Head | Production Mgr. | Scotland |
| 26 | Margaret Arnott | 32 | Wife | — | Illinois |
| 27 | James Arnott | 13 | Son | — | Illinois |
| 28 | Lucille Arnott | 12 | Daughter | — | Illinois |
| 29 | William Arnott | 7 | Son | — | Illinois |
| 30 | Robert Arnott | 3 | Son | — | Illinois |
| 31 | Walter Arnott | 1 | Son | — | Illinois |
| 32 | Marguerite Arnott | 0 | Daughter | — | Illinois |
| 33 | Leota Ruth | 68 | Head | — | Indiana |
| 34 | Alfred Johnson | 76 | Head | — | Sweden |
| 35 | Amelia Johnson | 73 | Wife | — | Sweden |
| 36 | Ernest Johnson THIS PERSON | 40 | Son | Spot Welder | Illinois |
| 37 | Elmer Johnson | 36 | Son | Drill Press Opr. | Illinois |
| 38 | Hilda Peterson | 75 | Head | — | Sweden |
| 39 | Violet Orr | 36 | Daughter | Operator | Illinois |
| 40 | Albert Orr | 35 | Son-in-law | Machinist | Illinois |
Related Census Records
Pedigree Summary
Ernest + 1 sibling
Gen 1 · 6 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)