JJ
Jean Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stephenson-County, Illinois
Our Model Tree links this Jean Johnson across the 1930 and 1940 US Censuses in Stephenson-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stephenson-County, Illinois |
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Loran Township |
| 1935 Residence (County) | Stephenson |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Loran Township |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jean | Age | Birth yr |
|---|---|---|---|---|
| Donna Johnson | Daughter | — | 5 | ~1935 |
| Mary Koertner | Other | — | 75 | ~1865 |
| Karl Johnson | Son | — | 24 | ~1916 |
| Merrell Johnson | Son | — | 21 | ~1919 |
| Ester Johnson | Spouse | — | 48 | ~1892 |
| John Johnson | Head | — | 50 | ~1890 |
| Jean Johnson | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Stephenson, Illinois
Daughter, age 3
Stephenson, Illinois · implied b. ~1927 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Stephenson-County, Illinois
Daughter, age 13
Stephenson-County, Illinois · implied b. ~1927 — 7 household members
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Loran Township |
| 1935 Residence (County) | Stephenson |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| 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 Jean Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jean Johnson
Daughter · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Merrell Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Karl Johnson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donna Johnson
Sibling · 1940 · age 5
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 — Stephenson-County, Illinois
Open full size
1940 US Federal Census — Stephenson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00893-00112)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence Brinkmeier | 20 | Son | Farm Helper | Illinois |
| 2 | Fred Lott | 65 | Head | Farmer | Illinois |
| 3 | Julia Lott | 56 | Wife | — | Illinois |
| 4 | Alvin Lott | 19 | Son | Farm Helper | Illinois |
| 5 | Margaret Lott | 15 | Daughter | — | Illinois |
| 6 | Walter Collin | 51 | Head | Farmer | Illinois |
| 7 | Elva Collin | 49 | Wife | — | Illinois |
| 8 | Kenneth Kuhlemeyer | 33 | Head | Farmer | Illinois |
| 9 | Verena Kuhlemeyer | 32 | Wife | — | Illinois |
| 10 | Wilma Kuhlemeyer | 3 | Daughter | — | Illinois |
| 11 | Lester Alt | 18 | Hired man | Farm Helper | Illinois |
| 12 | Robert Garnhart | 26 | Head | Farmer | Illinois |
| 13 | Delta Garnhart | 24 | Wife | — | Illinois |
| 14 | Mary Ann Garnhart | 2 | Daughter | — | Illinois |
| 15 | Gordon Miles Garnhart | 0 | Son | — | Illinois |
| 16 | Sister Florence | None | F | Private Home | — |
| 17 | Eugene Clark | 23 | Hired man | Farm Helper | Illinois |
| 18 | John J. Johnson | 50 | Head | Farmer | Illinois |
| 19 | Ester Johnson | 48 | Wife | — | Illinois |
| 20 | Karl Johnson | 24 | Son | Farm Helper | Illinois |
| 21 | Merrell Johnson | 21 | Son | Farm Helper | Illinois |
| 22 | Jean Johnson THIS PERSON | 13 | Daughter | — | Illinois |
| 23 | Donna Lee Johnson | 5 | Daughter | — | Illinois |
| 24 | Mary Koertner | 75 | Mother-in-law | — | Illinois |
| 25 | Robert D. Kuhlemeyer | 40 | Head | Farmer | Illinois |
| 26 | Gladys Kuhlemeyer | 36 | Wife | — | Illinois |
| 27 | August Kortemeier | 57 | Head | Farmer | Illinois |
| 28 | Nellie Kortemeier | 53 | Wife | — | Illinois |
| 29 | Karl Kortemeier | 19 | Son | — | Illinois |
| 30 | Charles E. Koefers | 52 | Head | Farmer | Illinois |
| 31 | Florence Koefers | 48 | Wife | — | Illinois |
| 32 | George Koefers | 18 | Son | Farm Helper | Illinois |
| 33 | Donald Koefers | 14 | Son | Farm Helper | Illinois |
| 34 | Raymond Klepping | 38 | Head | Farmer | Illinois |
| 35 | Bernice Klepping | 29 | Wife | — | Illinois |
| 36 | Leo Klepping | 2 | Son | — | Illinois |
| 37 | Agatha Klepping | 1 | Daughter | — | Illinois |
| 38 | John Morgan | 21 | Hired man | Farm Helper | Kentucky |
| 39 | Lester Klopping | 34 | Head | Farmer | Illinois |
| 40 | Lucille Klopping | 22 | Wife | — | 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)