CJ
Clara Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Clara Johnson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Female
Spouse
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1882 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Charles Johnson | Head | — | 64 | ~1876 |
| Oscar Johnson | Son | — | 19 | ~1921 |
| Rudolph Johnson | Son | — | 20 | ~1920 |
| Clara Johnson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Winnebago, Illinois
Spouse, age 39
Winnebago, Illinois · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1901 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1901 |
| Birthplace (normalized) | norway |
1930
Winnebago, Illinois
Other, age 48
Winnebago, Illinois · implied b. ~1882 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 18 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Winnebago-County, Illinois
Spouse, age 58
Winnebago-County, Illinois · implied b. ~1882 — 4 household members
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Clara 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
Clara Johnson
Spouse · 1940 · age 58 · b. ~1882 · 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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00913-00666)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bengt Flood | 16 | Son | — | Sweden |
| 42 | Leroy Flood | 11 | Son | — | Illinois |
| 43 | Robert Flood | 9 | Son | — | Illinois |
| 44 | Jennie Harris | 71 | Head | General Factory Worker | Illinois |
| 45 | John J. Harris | 45 | Son | — | Illinois |
| 46 | Gerald Harris | 25 | Son | — | Illinois |
| 47 | Lawrence Miller | 44 | Head | Machinist | Illinois |
| 48 | Frances Miller | 49 | Wife | — | Indiana |
| 49 | Laura Jane Miller | 12 | Daughter | — | Illinois |
| 50 | Anna Nelson | 62 | Head | — | Ohio |
| 51 | Alice Turner | 53 | Head | — | Minnesota |
| 52 | Jack Turner | 15 | Son | — | California |
| 53 | Betty Lou Turner | 11 | Daughter | — | Minnesota |
| 54 | John Valerius | 38 | Head | Tool Maker | Minnesota |
| 55 | Mabel Valerius | 34 | Wife | — | Minnesota |
| 56 | Jeanne Valerius | 12 | Daughter | — | Minnesota |
| 57 | Joan Valerius | 10 | Daughter | — | Illinois |
| 58 | John Jr. Valerius | 2 | Son | — | Illinois |
| 59 | Esther Carlson | 47 | Head | Inspector | Illinois |
| 60 | Kenneth Carlson | 21 | Son | Machine Operator | Illinois |
| 61 | Harry Thompson | 51 | Head | Assessor | Michigan |
| 62 | Sadie Thompson | 51 | Wife | — | Illinois |
| 63 | Marie Carlson | 31 | Niece | Buyer | Illinois |
| 64 | Archie Halladay | 52 | Head | Proprietor | Michigan |
| 65 | Mildred Halladay | 38 | Wife | Manager | Illinois |
| 66 | Margaret Halladay | 12 | Daughter | — | Illinois |
| 67 | Magnus Pearson | 49 | Head | Case Maker | Sweden |
| 68 | Anna Pearson | 49 | Wife | Maid | Sweden |
| 69 | Clara Trygg | 36 | Lodger | Foreman | Sweden |
| 70 | Clara Carlson | 65 | Head | — | Sweden |
| 71 | Elmer W. Carlson | 32 | Son | Cement Finisher | Illinois |
| 72 | Melvin R. Carlson | 21 | Son | — | Illinois |
| 73 | Charles Arthur Johnson | 64 | Head | Machine Hand | Sweden |
| 74 | Clara Johnson THIS PERSON | 58 | Wife | — | Norway |
| 75 | Rudolph Johnson | 20 | Son | Filling Station Operator | Illinois |
| 76 | Oscar Johnson | 19 | Son | Upholsterer | Illinois |
| 77 | — | None | — | — | — |
| 78 | Edwin Nelson | 47 | Head | Finisher | Sweden |
| 79 | Ella Nelson | 39 | Wife | Cook | Iowa |
| 80 | Lorraine Nelson | 15 | Daughter | — | Illinois |
Related Census Records
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)