VJ
Vivian Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Vivian Johnson across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1928 |
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 Vivian | Age | Birth yr |
|---|---|---|---|---|
| Gary Johnson | Son | — | 3 | ~1937 |
| Jacqueline Johnson | Daughter | — | 9 | ~1931 |
| Marguerite Johnson | Spouse | — | 34 | ~1906 |
| Janice Johnson | Daughter | — | 7 | ~1933 |
| Patricia Johnson | Daughter | — | 1 | ~1939 |
| Frank Johnson | Head | — | 43 | ~1897 |
| Vivian Johnson | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Woodbury, Iowa
Daughter, age 2
Woodbury, Iowa · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Daughter, age 12
Woodbury-County, Iowa · implied b. ~1928 — 7 household members
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Highest Grade | No 6 |
| 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 Vivian Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Vivian Johnson
Daughter · 1940 · age 12 · b. ~1928 · Iowa
★ You are viewing this record
Sibling
Gary Johnson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Johnson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Johnson
Sibling · 1940 · age 7
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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01215-00880)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys Perry | 37 | Wife | — | Nebraska |
| 2 | Betty Lou Perry | 16 | Daughter | — | Iowa |
| 4 | Paul Rossvach | 25 | Head | Laborer | So. Dakota |
| 5 | Ida Rossvach | 65 | Wife | — | Iowa |
| 6 | Ida Phillips | 65 | Head | Domestic | Illinois |
| 7 | Andrew Madsen | 76 | Head | — | Canada-English |
| 8 | Della Madsen | 67 | Wife | — | Iowa |
| 9 | Apprey Ellen Madsen | 21 | Granddaughter | — | Iowa |
| 10 | Grace Carlson | 39 | Head | — | Iowa |
| 11 | Lloyd Carlson | 16 | Son | — | Iowa |
| 12 | Ruth Carlson | 15 | Daughter | — | Iowa |
| 13 | Glenn Carlson | 14 | Son | — | Iowa |
| 14 | Jane Carlson | 10 | Daughter | — | California |
| 15 | Frank Johnson | 43 | Head | Trucker | Iowa |
| 16 | Marguerite Johnson | 34 | Wife | — | Nebraska |
| 17 | Vivian Johnson THIS PERSON | 12 | Daughter | — | Iowa |
| 18 | Jacqueline Johnson | 9 | Daughter | — | Iowa |
| 19 | Janice Johnson | 7 | Daughter | — | Iowa |
| 20 | Gary Johnson | 3 | Son | — | Iowa |
| 21 | Patricia Johnson | 1 | Daughter | — | Iowa |
| 22 | Harvey Crawford | 21 | Head | Freezer Operator | Iowa |
| 23 | Lilly Crawford | 23 | Wife | — | So. Dakota |
| 24 | Glenn Crawford | 1 | Son | — | Iowa |
| 25 | Walter Rueken | 48 | Head | Laborer | Iowa |
| 26 | Minnie Rueken | 36 | Wife | — | Kansas |
| 27 | Kenneth Rueken | 9 | Son | — | California |
| 28 | Charles Percy | 22 | Head | Drapery Driver | Iowa |
| 29 | Olive Percy | 23 | Wife | Waitress | Nebraska |
| 30 | Stanley Nuppert | 31 | Head | Hand Wrapper | Iowa |
| 31 | Geraldine Nuppert | 27 | Wife | — | Iowa |
| 32 | Vernon L. Ray Nuppert | 5 | Son | — | Iowa |
| 33 | Bernadine Nuppert | 1 | Daughter | — | Iowa |
| 34 | Albert Smith | 34 | Head | Taxi Driver | So. Dakota |
| 35 | Katherine Smith | 22 | Wife | — | Nebraska |
| 36 | Rea Ann Smith | 1 | Daughter | — | Iowa |
| 37 | Rollond Morris | 25 | Head | Truck Driver | Iowa |
| 38 | Dorothy Morris | 22 | Wife | — | Iowa |
| 39 | Rallyn Morris | 1 | Son | — | Iowa |
| 40 | Harlan Morris | 0 | Son | — | 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)