CJ
Clara Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Iroquois-County, Illinois
Our Model Tree links this Clara Johnson across the 1920, 1930 and 1940 US Censuses in Iroquois-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 2-person household.
Age 56
b. ~1884
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Iroquois-County, Illinois |
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Iroquois |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Watseka City |
| Est. Birth Year | ~1884 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Bertha Johnson | Daughter | — | 34 | ~1906 |
| Clara Johnson | Head | — | 56 | ~1884 |
Census Appearances
1920
Iroquois, Illinois
Spouse, age 36
Iroquois, Illinois · implied b. ~1884 — 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 | 36 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1903 |
| Birthplace (normalized) | sweden |
1930
Iroquois, Illinois
Spouse, age 45
Iroquois, Illinois · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Iroquois-County, Illinois
Head, age 56
Iroquois-County, Illinois · implied b. ~1884 — 2 household members
| Surname | Johnson |
| Given Name | Clara |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Iroquois |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| 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 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
Head · 1940 · age 56 · b. ~1884 · 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 — Iroquois-County, Illinois
Open full size
1940 US Federal Census — Iroquois-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00813-00204)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William W Hall | 25 | Head | Electrician | Illinois |
| 42 | Martha Hall | 22 | Wife | Laborer | Indiana |
| 43 | Fred C Weimann | 73 | Head | Janitor | Germany |
| 44 | Mary Weimann | 66 | Wife | — | Illinois |
| 45 | Clara Johnson THIS PERSON | 56 | Head | — | Sweden |
| 46 | Bertha Johnson | 34 | Daughter | Owner | Illinois |
| 47 | Joe S Stone | 69 | Head | Janitor | Illinois |
| 48 | Jessie Stone | 64 | Wife | — | Illinois |
| 49 | Victor L Vickers | 21 | Head | Attendant | Illinois |
| 50 | Betty Vickers | 19 | Wife | Laborer | Indiana |
| 51 | John M Merrill | 76 | Head | Agent | Indiana |
| 52 | Lottie C Merrill | 76 | Wife | — | Kentucky |
| 53 | Neva E Purgett | 50 | Head | House Work | Illinois |
| 54 | Benton N Purgett | 22 | Son | Salesman | Oklahoma |
| 55 | Clarence E Taylor | 47 | Head | Contractor | Illinois |
| 56 | Elsie G Taylor | 37 | Wife | Washer | Illinois |
| 57 | Vivian Thompson | 21 | Daughter | Laborer | Illinois |
| 58 | Jerry L Thompson | 2 | Grandson | — | Illinois |
| 59 | Wilbur L Taylor | 18 | Son | Laborer | Illinois |
| 60 | Gaylord W Huesing | 40 | Head | Express Agent | Illinois |
| 61 | Margaret E Huesing | 38 | Wife | — | Illinois |
| 62 | Henry Jones | 79 | Head | — | Alabama |
| 63 | Nellie C Jones | 70 | Wife | — | Illinois |
| 64 | Lulu V Woodard | 17 | Niece | — | Illinois |
| 65 | Henry O Woodard | 16 | Nephew | — | Illinois |
| 66 | Gildas M Woodard | 10 | Niece | — | Illinois |
| 67 | Charlotte V Morgan | 89 | Cousin | — | Michigan |
| 68 | Julia C Brown | 53 | Head | — | Illinois |
| 69 | Helen Goldstein | 30 | Daughter | — | Missouri |
| 70 | Arthur F Goldstein | 38 | Son-in-law | Meat Cutter | Illinois |
| 71 | Clara S Livingston | 49 | Head | Operator | Minnesota |
| 72 | Esther Livingston | 45 | Wife | — | Illinois |
| 73 | Carrie A Wilson | 47 | Head | Relief Worker | Indiana |
| 74 | Elroy P Langellier | 39 | Head | Salesman | Indiana |
| 75 | Margaret E Langellier | 37 | Wife | Saleslady | Illinois |
| 76 | Joyce Langellier | 13 | Daughter | — | Illinois |
| 77 | Glendon Langellier | 12 | Son | — | Illinois |
| 78 | Sam L Showlan | 48 | Head | Supervisory Clerk | New York |
| 79 | Charlotte Showlan | 41 | Wife | — | Illinois |
| 80 | Bette J Showlan | 18 | Daughter | Receptionist | 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)