SJ
Stella Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, Illinois
Our Model Tree links this Stella Johnson across the 1920, 1930 and 1940 US Censuses in Mercer-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Illinois |
| Surname | Johnson |
| Given Name | Stella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rivoli |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rivoli |
| Est. Birth Year | ~1903 |
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 Stella | Age | Birth yr |
|---|---|---|---|---|
| John Johnson | Head | — | 79 | ~1861 |
| Stella Johnson | Daughter | — | 37 | ~1903 |
| Donald Hall | Other | — | 30 | ~1910 |
Census Appearances
1920
Mercer, Illinois
Daughter, age 16
Mercer, Illinois · implied b. ~1904 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Stella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mercer, Illinois
Daughter, age 27
Mercer, Illinois · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Stella |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mercer-County, Illinois
Daughter, age 37
Mercer-County, Illinois · implied b. ~1903 — 3 household members
| Surname | Johnson |
| Given Name | Stella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rivoli |
| 1935 Residence (County) | Mercer |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| 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 Stella Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1861
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Stella Johnson
Daughter · 1940 · age 37 · b. ~1903 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, Illinois
Open full size
1940 US Federal Census — Mercer-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00858-00534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Neva Franks | 25 | Wife | — | Iowa |
| 42 | Maynard Franks | 4 | Son | — | Illinois |
| 43 | Clifford Franks | 3 | Son | — | Illinois |
| 44 | Laura Franks | 0 | Daughter | — | Illinois |
| 45 | Lillie Frye | 73 | Head | Housekeeper | Sweden |
| 46 | Julius Vanstrom | 75 | Head | — | Sweden |
| 47 | Glen Vanstrom | 41 | Son | Farmer | Illinois |
| 48 | Elder Vanstrom | 36 | Son | Farmer | Illinois |
| 49 | Nels Nelson | 68 | Boarder | Farmer | Sweden |
| 50 | Charles D. Johnson | 50 | Head | Farmer | Illinois |
| 51 | Edwin Peterson | 47 | Head | Farmer | Illinois |
| 52 | Dora Peterson | 44 | Wife | — | Illinois |
| 53 | Helen Peterson | 17 | Daughter | — | Illinois |
| 54 | Harlan Peterson | 15 | Son | — | Illinois |
| 55 | Mervin Peterson | 24 | Head | Farmer | Illinois |
| 56 | Helen Peterson | 21 | Wife | — | Illinois |
| 57 | Milton Peterson | 0 | Son | — | Illinois |
| 58 | Fred B. Peterson | 62 | Head | Farmer | Illinois |
| 59 | Minnie C. Peterson | 52 | Wife | — | Illinois |
| 60 | Carl Bird | 13 | Boarder | — | Iowa |
| 61 | Alma Vanstrom | 63 | Head | — | Illinois |
| 62 | Arthur Vanstrom | 36 | Son | Farmer | Illinois |
| 63 | Fergus Mclane | 76 | Head | — | Illinois |
| 64 | Mary Mclane | 70 | Sister | — | Illinois |
| 65 | Oscar Mclane | 57 | Brother | Farmer | Sweden |
| 66 | Amanda Engwall | 75 | Head | — | Sweden |
| 67 | Edna Engwall | 34 | Daughter | School Teacher | Illinois |
| 68 | Albin J. Johnson | 66 | Brother | Farmer | Sweden |
| 69 | John Aug. Johnson | 79 | Head | — | Sweden |
| 70 | Stella Johnson THIS PERSON | 37 | Daughter | — | Illinois |
| 71 | Donald Hall | 30 | Boarder | Blacksmith | Illinois |
| 72 | Clifford Swanson | 29 | Head | Farmer | Illinois |
| 73 | Marjory Swanson | 28 | Wife | — | Illinois |
| 74 | Richard Swanson | 7 | Son | — | Illinois |
| 75 | Robert Swanson | 5 | Son | — | Illinois |
| 76 | Russell Swanson | 1 | Son | — | Illinois |
| 77 | Oscar Swanson | 70 | Head | Farmer | Illinois |
| 78 | Ida Swanson | 67 | Sister | — | Illinois |
| 79 | Charles Swanson | 70 | Head | Farmer | Illinois |
| 80 | Anna Swanson | 53 | Wife | — | Illinois |
Pedigree Summary
Stella
Gen 1 · 5 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)