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Jean Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hancock-County, Iowa
Our Model Tree links this Jean Johnson across the 1930 and 1940 US Censuses in Hancock-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hancock-County, Iowa |
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kossuth |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Erin Township |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Denney Johnson | Son | — | 14 | ~1926 |
| Jean Johnson | Daughter | — | 15 | ~1925 |
| Walter Johnson | Son | — | 9 | ~1931 |
| Ruth Johnson | Spouse | — | 38 | ~1902 |
| Charlene Johnson | Daughter | — | 5 | ~1935 |
| Elmer Johnson | Head | — | 43 | ~1897 |
| Mary Johnson | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Hancock, Iowa
Daughter, age 5
Hancock, Iowa · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Hancock-County, Iowa
Daughter, age 15
Hancock-County, Iowa · implied b. ~1925 — 7 household members
| Surname | Johnson |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kossuth |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 15 · b. ~1925 · Iowa
★ You are viewing this record
Sibling
Charlene Johnson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Denney Johnson
Sibling · 1940 · age 14
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 — Hancock-County, Iowa
Open full size
1940 US Federal Census — Hancock-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01164-00933)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arnold Pearson | 13 | Son | — | Iowa |
| 2 | Eldon Pearson | 12 | Son | — | Iowa |
| 3 | Dick Betten | 44 | Head | Farmer | Iowa |
| 4 | Cora Betten | 40 | Wife | — | Iowa |
| 5 | Ike Steinwandt | 28 | Hired man | Labour | North Dakota |
| 6 | Ike Heldman | 52 | Head | Farmer | Illinois |
| 7 | Isabel Heldman | 45 | Wife | — | Iowa |
| 8 | Ruth Mary Heldman | 18 | Daughter | — | Iowa |
| 9 | Raymond Heldman | 16 | Son | — | Iowa |
| 10 | Arnold Heldman | 11 | Son | — | Iowa |
| 11 | Charles Perkins | 54 | Head | Farmer | Iowa |
| 12 | Emily M. Perkins | 49 | Wife | — | Illinois |
| 13 | John H. Ostercamp | 32 | Head | Farmer | Iowa |
| 14 | Eleanor Ostercamp | 27 | Wife | — | Iowa |
| 15 | Henry Plemel | 33 | Hired man | Laborer | North Dakota |
| 16 | Ray Patch | 22 | Lodger | Laborer | Iowa |
| 17 | John S. Hughes | 66 | Head | Farmer | Illinois |
| 18 | Mary Hughes | 65 | Wife | — | Illinois |
| 19 | Raymond Hughes | 28 | Son | Labour | Iowa |
| 20 | Dean Hughes | 27 | Son | Labour | Iowa |
| 21 | Helen Hughes | 26 | Daughter | — | Iowa |
| 22 | Timothy Hughes | 0 | Grandson | — | Iowa |
| 23 | Elmer Johnson | 43 | Head | Farmer | Iowa |
| 24 | Ruth Johnson | 38 | Wife | — | Iowa |
| 25 | Jean Johnson THIS PERSON | 15 | Daughter | — | Iowa |
| 26 | Denney Johnson | 14 | Son | Labour | Iowa |
| 27 | Walter Johnson | 9 | Son | — | Iowa |
| 28 | Charlene Johnson | 5 | Daughter | — | Iowa |
| 29 | Mary Lou Johnson | 3 | Daughter | — | Iowa |
| 30 | Carl Ruger | 32 | Head | Farmer | Iowa |
| 31 | Violet Ruger | 33 | Wife | — | Iowa |
| 32 | Virginia Ruger | 0 | Daughter | — | Iowa |
| 33 | John Paulson | 62 | Head | Farmer | Illinois |
| 34 | Anna Paulson | 54 | Wife | — | Iowa |
| 35 | Paul Paulson | 19 | Son | Labour | Iowa |
| 36 | Dallas Morrow | 56 | Head | Farmer | — |
| 37 | Lydia Morrow | 66 | Wife | — | Penna. |
| 38 | Ella Morrow | 28 | Daughter | School Teacher | Iowa |
| 39 | Charles L. Dault | 39 | Head | Farmer | Iowa |
| 40 | Theressa Dault | 31 | Wife | — | Iowa |
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)