BJ
Barbara Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pocahontas-County, Iowa
Our Model Tree links this Barbara Johnson across the 1930 and 1940 US Censuses in Pocahontas-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pocahontas-County, Iowa |
| Surname | Johnson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cummins |
| 1935 Residence (County) | Pocahontas |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Cummins |
| Est. Birth Year | ~1929 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Barbara | Age | Birth yr |
|---|---|---|---|---|
| Barbara Johnson | Daughter | — | 11 | ~1929 |
| Winnifred Johnson | Daughter | — | 18 | ~1922 |
| Caraleen Johnson | Daughter | — | 17 | ~1923 |
| Melfert Johnson | Head | — | 47 | ~1893 |
| Wilbur Johnson | Son | — | 13 | ~1927 |
| Genevieve Johnson | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Pocahontas, Iowa
Daughter, age 1
Pocahontas, Iowa · implied b. ~1929 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Barbara J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pocahontas-County, Iowa
Daughter, age 11
Pocahontas-County, Iowa · implied b. ~1929 — 6 household members
| Surname | Johnson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cummins |
| 1935 Residence (County) | Pocahontas |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| 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 Barbara Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Johnson
Daughter · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Caraleen Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winnifred Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Johnson
Sibling · 1940 · age 13
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 — Pocahontas-County, Iowa
Open full size
1940 US Federal Census — Pocahontas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01191-00196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Potter | 28 | Head | Farmer | Iowa |
| 42 | Floyd Ferguson | 37 | Head | Farmer | Iowa |
| 43 | Nora Ferguson | 38 | Wife | — | Iowa |
| 44 | Verlae Ferguson | 12 | Daughter | — | Iowa |
| 45 | Dale Ferguson | 10 | Son | — | Iowa |
| 46 | Lyle Ferguson | 8 | Son | — | Iowa |
| 47 | Darlene Ferguson | 1 | Daughter | — | Iowa |
| 48 | Arthur Norwick | 32 | Head | Farmer | Iowa |
| 49 | Jenny Norwick | 32 | Wife | — | Iowa |
| 50 | Francis Norwick | 10 | Son | — | Iowa |
| 51 | Gaylord Norwick | 7 | Son | — | Iowa |
| 52 | Raymond Hartport | 37 | Head | Farmer | Illinois |
| 53 | Ione Hartport | 35 | Wife | — | Iowa |
| 54 | Kenneth Hartport | 11 | Son | — | Iowa |
| 55 | Arelene Hartport | 10 | Daughter | — | Iowa |
| 56 | David Hartport | 8 | Son | — | Iowa |
| 57 | Lowell Hartport | 2 | Son | — | Iowa |
| 58 | Willis Lain | 5 | Nephew | — | Iowa |
| 59 | Willard Lain | 4 | Nephew | — | Iowa |
| 60 | Leon Allen | 34 | Head | Farmer | Iowa |
| 61 | Ellen D. Allen | 38 | Wife | — | Illinois |
| 62 | Robert Allen | 12 | Son | — | Iowa |
| 63 | Melfert Johnson | 47 | Head | Farmer | Iowa |
| 64 | Genevieve Johnson | 42 | Wife | — | Iowa |
| 65 | Winnifred Johnson | 18 | Daughter | — | Iowa |
| 66 | Caraleen Johnson | 17 | Daughter | — | Iowa |
| 67 | Wilbur Johnson | 13 | Son | — | Iowa |
| 68 | Barbara Johnson THIS PERSON | 11 | Daughter | — | Iowa |
| 69 | Douglas Rigby | 42 | Head | Farmer | Wisconsin |
| 70 | Hazel Rigby | 40 | Wife | — | Iowa |
| 71 | Lucille A. B. Rigby | 19 | Daughter | — | Iowa |
| 72 | Robert Rigby | 14 | Son | — | Iowa |
| 73 | Jeannet Rigby | 9 | Daughter | — | Iowa |
| 74 | Emmet Runneberg | 28 | Head | Farmer | Iowa |
| 75 | Martha Runneberg | 24 | Wife | — | Iowa |
| 76 | Alma Runneberg | 66 | Mother | — | Kansas |
| 77 | Ralph Hemm | 36 | Head | Farmer | Iowa |
| 78 | Helen Hemm | 35 | Wife | — | Iowa |
| 79 | Verna Hemm | 12 | Daughter | — | Iowa |
| 80 | Iva Lee Hemm | 9 | Daughter | — | 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)