FJ
Fred Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Columbia-County, Oregon
Our Model Tree links this Fred Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Columbia-County, Oregon (XGBoost, ~Confirmed), with identified parents Louis & Sarah — first a head (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbia-County, Oregon |
| Surname | Johnson |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Clatskanie |
| 1935 Residence (County) | Columbia |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | G 6 |
| 1935 Residence | Same house |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Farmer |
| Township / Ward | Clatskanie |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Arlene Johnson | Daughter | — | 16 | ~1924 |
| Margaret Johnson | Daughter | — | 14 | ~1926 |
| Fred Johnson | Head | — | 41 | ~1899 |
| Louis Johnson | Son | — | 9 | ~1931 |
| Agnes Johnson | Spouse | — | 37 | ~1903 |
Census Appearances
1910
Columbia, Oregon
Son, age 11
Columbia, Oregon · implied b. ~1899 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1920
Columbia, Oregon
Son, age 21
Columbia, Oregon · implied b. ~1899 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Rigging man |
| Industry | Logging camp |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Columbia, Oregon
Head, age 31
Columbia, Oregon · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Fred O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Oregon |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 200 |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Columbia-County, Oregon
Head, age 41
Columbia-County, Oregon · implied b. ~1899 — 5 household members
| Surname | Johnson |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Clatskanie |
| 1935 Residence (County) | Columbia |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | G 6 |
| 1935 Residence | Same house |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Fred Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Johnson (~0.92 confidence) and mother Sarah Johnson (~0.92 confidence) and mother Sarah Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Sarah Johnson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Sarah Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Johnson
Head · 1940 · age 41 · b. ~1899 · Oregon
★ 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 — Columbia-County, Oregon
Open full size
1940 US Federal Census — Columbia-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03357-00048)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eldon Hawk | 14 | Son | — | Washington |
| 2 | Steel Cook | 44 | Head | School Bus Driver | Idaho |
| 3 | Ima Q Cook | 39 | Wife | — | Idaho |
| 4 | Merle Cook | 14 | Daughter | — | Oregon |
| 5 | Eugene Cook | 12 | Son | — | Oregon |
| 6 | Eric John Lindberg | 81 | Head | Farmer | Sweden |
| 7 | Anna M. Lindberg | 87 | Wife | — | Sweden |
| 8 | Oscar L. Lindberg | 46 | Son | Patrolman | Oregon |
| 9 | Max Fogel | 60 | Head | Farmer | Germany |
| 10 | Francis Fogel | 55 | Wife | — | Oregon |
| 11 | Clayton Fogel | 25 | Son | Truck Driver | Oregon |
| 12 | Jess Fogel | 21 | Son | Farm Helper | Oregon |
| 13 | Carl E. Danielson | 64 | Head | Farmer | Sweden |
| 14 | Anna Q Danielson | 59 | Wife | — | Sweden |
| 15 | Sam Devine | 39 | Head | — | Oregon |
| 16 | Ellen Q Devine | 40 | Wife | — | Sweden |
| 17 | Clair Devine | 10 | Son | — | Oregon |
| 18 | James W. Devine | 73 | Father | — | Missouri |
| 19 | Walter Zillman | 38 | Head | Farmer | Oregon |
| 20 | Marion Zillman | 31 | Wife | — | Iowa |
| 21 | N. Hinton Zillman | 12 | Son | — | Oregon |
| 22 | Mary Ruth Zillman | 10 | Daughter | — | Oregon |
| 23 | William F. Zillman | 8 | Son | — | Oregon |
| 24 | James O. Zillman | 1 | Son | — | Oregon |
| 25 | Dwight Clausen | 45 | Head | Stationary Engineer | Iowa |
| 26 | Leila Clausen | 35 | Wife | — | Idaho |
| 27 | Charles Clausen | 18 | Son | — | Idaho |
| 28 | Arthur Clausen | 14 | Son | — | Idaho |
| 29 | Celaski Bell | 89 | Mother | — | Michigan |
| 30 | Herbert B. Johnson | 31 | Head | Brakeman | Oregon |
| 31 | Viola Johnson | 28 | Wife | — | Oregon |
| 32 | Melvin Carlson | 25 | Hired man | Farm Helper | Oregon |
| 33 | Louis Johnson | 73 | Head | — | Sweden |
| 34 | Sarah Johnson | 72 | Wife | — | Sweden |
| 35 | Victor Johnson | 46 | Son | Farm Helper | Oregon |
| 36 | Fred Johnson THIS PERSON | 41 | Head | Farmer | Oregon |
| 37 | Agnes Johnson | 37 | Wife | — | Oregon |
| 38 | Arlene Johnson | 16 | Daughter | — | Oregon |
| 39 | Margaret Johnson | 14 | Daughter | — | Oregon |
| 40 | Louis Johnson | 9 | Son | — | Oregon |
Pedigree Summary
Fred
Gen 1 · 3 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)