OJ
Oscar Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bayfield-County, Wisconsin
Our Model Tree links this Oscar Johnson across the 1920, 1930 and 1940 US Censuses in Bayfield-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Gilbert & Julia — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bayfield-County, Wisconsin |
| Surname | Johnson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Kelly Township |
| 1935 Residence (County) | Bayfield |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 78 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Kelly Township |
| Est. Birth Year | ~1888 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Johnson | Head | — | 52 | ~1888 |
| Duane Johnson | Son | — | 15 | ~1925 |
| Julian Johnson | Son | — | 11 | ~1929 |
| Martha Johnson | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Bayfield, Wisconsin
Son, age 32
Bayfield, Wisconsin · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Oscar A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Bayfield, Wisconsin
Head, age 42
Bayfield, Wisconsin · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 31 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 1500 |
| Veteran | O |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Bayfield-County, Wisconsin
Head, age 52
Bayfield-County, Wisconsin · implied b. ~1888 — 4 household members
| Surname | Johnson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Kelly Township |
| 1935 Residence (County) | Bayfield |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 78 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Oscar Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gilbert Johnson (~0.92 confidence) and mother Julia Johnson (~0.92 confidence) and mother May Johnson (~0.60 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Father
Gilbert Johnson
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Julia Johnson
b. ~1856
Source mother
● Household
· direct · ~0.92
Mother
May Johnson
b. ~1886
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Oscar Johnson
Head · 1940 · age 52 · b. ~1888 · Wisconsin
★ 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 — Bayfield-County, Wisconsin
Open full size
1940 US Federal Census — Bayfield-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04458-00245)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John E Mattson | 66 | Head | Farming | Finland |
| 42 | Anna Mattson | 52 | Wife | — | Sweden |
| 43 | Edwin Mattson | 25 | Son | Farm Hand | Wisconsin |
| 44 | Roy H Mattson | 23 | Son | Farm Hand | Wisconsin |
| 45 | George A Pfeiffer | 48 | Head | Farmer | Wisconsin |
| 46 | Peter Schaad | 77 | Lodger | — | Wisconsin |
| 47 | Norman E Q Johnson | 42 | Head | Carpenter | Wisconsin |
| 48 | Lillian Johnson | 33 | Wife | — | Wisconsin |
| 49 | Edith Johnson | 4 | Daughter | — | Minnesota |
| 50 | Lawrence Johnson | 3 | Son | — | Wisconsin |
| 51 | Oscar Johnson THIS PERSON | 52 | Head | Farmer | Wisconsin |
| 52 | Martha Johnson | 40 | Wife | — | Wisconsin |
| 53 | Duane Johnson | 15 | Son | — | Wisconsin |
| 54 | Julian Johnson | 11 | Son | — | Wisconsin |
| 55 | William Hoffman | 40 | Head | Farmer | Wisconsin |
| 56 | Laura B Hoffman | 44 | Wife | — | Wisconsin |
| 57 | Albert Hoffman | 17 | Son | — | Wisconsin |
| 58 | Judith Hoffman | 15 | Daughter | — | Wisconsin |
| 59 | Nova Hoffman | 12 | Daughter | — | Wisconsin |
| 60 | David Hoffman | 5 | Son | — | Wisconsin |
| 61 | Leon Hoffman | 2 | Son | — | Wisconsin |
| 62 | Albert Hoffman | 69 | Father | — | New York |
| 63 | Henry E Kelly | 74 | Head | Farming | Wisconsin |
| 64 | Eva Kelly | 77 | Wife | — | Wisconsin |
| 65 | Dorothy M Kelly | 39 | Daughter | House Work | Wisconsin |
| 66 | Cyril Kelly | 34 | Head | Farming | Wisconsin |
| 67 | Ethel Kelly | 35 | Wife | — | Iowa |
| 68 | Lester C Kelly | 29 | Head | Farming | Wisconsin |
| 69 | Carrie Kelly | 29 | Wife | — | Canada |
| 70 | Neil Kelly | 7 | Son | — | Wisconsin |
| 71 | Lucilla Kelly | 1 | Daughter | — | Wisconsin |
| 72 | Sydney S Kelly | 67 | Head | — | Wisconsin |
| 73 | Pearl Kelly | 63 | Wife | — | Wisconsin |
| 74 | William E Breslich | 58 | Head | — | Illinois |
| 75 | Norman J Eaton | 42 | Head | Labourer | Michigan |
| 76 | Alice Eaton | 19 | Wife | — | Wisconsin |
| 77 | George A Eaton | 0 | Son | — | Wisconsin |
| 78 | Bertha C Solberg | 78 | Head | — | Sweden |
| 79 | Oscar W Solberg | 42 | Son | Farming | Wisconsin |
| 80 | Emil Solberg | 43 | Head | Farming | Wisconsin |
Pedigree Summary
Oscar
Gen 1 · 3 parents
~0.81
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)