VJ
Vivian Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Vivian Johnson across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed), with identified parents John & Christine — first a head (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Occupation | President |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1568 |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | President |
| Township / Ward | Cedar Falls City |
| Est. Birth Year | ~1897 |
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 Vivian | Age | Birth yr |
|---|---|---|---|---|
| Sonya Johnson | Daughter | — | 7 | ~1933 |
| John Johnson | Other | — | 93 | ~1847 |
| Helen Christiansen | Other | — | 18 | ~1922 |
| Vivian Johnson | Head | — | 43 | ~1897 |
| Patricia Johnson | Daughter | — | 18 | ~1922 |
| Bernice Johnson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Black Hawk, …
Son, age 23
Black Hawk, Iowa · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Head, age 33
Black Hawk, Iowa · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Vivian W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Proof Cashier |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 255 |
| Veteran | Yes W.W. |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Head, age 43
Black-Hawk-County, Iowa · implied b. ~1897 — 6 household members
| Surname | Johnson |
| Given Name | Vivian |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Occupation | President |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1568 |
| Highest Grade | C-2 |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and mother Christine Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Christine Johnson
b. ~1857
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Vivian Johnson
Head · 1940 · age 43 · b. ~1897 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01139-00230)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bessie B. Goke | 54 | Wife | Sales Clerk | Missouri |
| 42 | Loren Ostrander | 80 | Head | Maintenance Work | Iowa |
| 43 | Della Ostrander | 77 | Wife | — | Iowa |
| 44 | Jennie Baxter | 60 | Head | — | Iowa |
| 45 | Freda Blaufuss | 35 | Lodger | Music Teacher | Iowa |
| 46 | Sara M. Riggs | 74 | Head | Teacher | Iowa |
| 47 | Jessie Ferguson | 70 | Lodger | Librarian | Indiana |
| 49 | Vivian Johnson THIS PERSON | 43 | Head | President | Iowa |
| 50 | Bernice Johnson | 44 | Wife | — | Missouri |
| 51 | Patricia Johnson | 18 | Daughter | — | Iowa |
| 52 | Sonya Johnson | 7 | Daughter | — | Iowa |
| 53 | John Johnson | 93 | Father | — | Denmark |
| 54 | Helen Christiansen | 18 | Maid | — | Iowa |
| 55 | S. C. Jacobsen | 48 | Head | Lawyer | Iowa |
| 56 | Leone Jacobsen | 44 | Wife | — | Illinois |
| 57 | Jerrold Jacobsen | 14 | Son | — | Kansas |
| 58 | Andrew Jacobsen | 75 | Father | — | Denmark |
| 59 | Annie Temm | 20 | Maid | Maid | Iowa |
| 60 | Elmer Rasmussen | 43 | Head | Proprietor | Iowa |
| 61 | Ruth C. Rasmussen | 42 | Wife | — | Iowa |
| 62 | Maxine Louise Rasmussen | 18 | Daughter | — | Iowa |
| 63 | Jackie Preston Rasmussen | 11 | Son | — | Iowa |
| 64 | John J. Ryhl | 50 | Head | Assistant Cashier | Iowa |
| 65 | Doris Ryhl | 41 | Wife | — | Iowa |
| 66 | Joanne Marjorie Ryhl | 8 | Daughter | — | Iowa |
| 67 | John Palmer Ryhl | 3 | Son | — | Iowa |
| 68 | C. A. Yonker | 85 | Head | — | Iowa |
| 69 | Emma Nelson | 58 | Keeper | Housekeeper | Iowa |
| 70 | O. F. Loyer | 65 | Head | Jeweler | Iowa |
| 71 | Susie D. Loyer | 67 | Wife | — | Iowa |
| 72 | E. C. Cawelti | 28 | Head | Truck Driver | Iowa |
| 73 | Laverne Cawelti | 27 | Wife | — | Iowa |
| 74 | James Bruce Cawelti | 0 | Son | — | Iowa |
| 75 | Kathryn Weik | 28 | Lodger | Operator | Iowa |
| 76 | Walter M. Round | 87 | Head | — | Ohio |
| 77 | Charlotte Round | 74 | Wife | — | New York |
| 78 | W. H. Walter | 56 | Lodger | Practical Nurse | Iowa |
| 79 | Joseph Geiger | 32 | Head | Machinist | Iowa |
| 80 | Stella Geiger | 29 | Wife | — | South Dakota |
Pedigree Summary
Vivian
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)