AJ
Arnold Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clearwater-County, Minnesota
Our Model Tree links this Arnold Johnson across the 1920, 1930 and 1940 US Censuses in Clearwater-County, Minnesota (XGBoost, ~Confirmed), with identified parents Adolph & Helena — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clearwater-County, Minnesota |
| Surname | Johnson |
| Given Name | Arnold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Sinclair Twp. |
| 1935 Residence (County) | Clearwater |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farming |
| Class of Worker | NP |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farm Laborer |
| Township / Ward | Sinclair Twp |
| Est. Birth Year | ~1920 |
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 Arnold | Age | Birth yr |
|---|---|---|---|---|
| Clarence Johnson | Son | — | 32 | ~1908 |
| Arnold Johnson | Son | — | 20 | ~1920 |
| Adolph Johnson | Head | — | 61 | ~1879 |
| Myrtle Johnson | Daughter | — | 25 | ~1915 |
| Rodger Nestrum | Other | — | 7 | ~1933 |
| Mrs Johnson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Clearwater, Minnesota
Son, age
Clearwater, Minnesota · implied b. ~1920 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Arnold H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Norway |
| Mother Tongue | Norwegian |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Clearwater, Minnesota
Son, age 10
Clearwater, Minnesota · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Arnold M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Clearwater-County, Minnesota
Son, age 20
Clearwater-County, Minnesota · implied b. ~1920 — 6 household members
| Surname | Johnson |
| Given Name | Arnold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Sinclair Twp. |
| 1935 Residence (County) | Clearwater |
| Occupation | Farm Laborer |
| Industry | Farming |
| Class of Worker | NP |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Arnold Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Johnson (~0.92 confidence) and mother Helena Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence) and mother Mrs Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Helena Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mrs Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arnold Johnson
Son · 1940 · age 20 · b. ~1920 · Minnesota
★ You are viewing this record
Sibling
Clarence Johnson
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Johnson
Sibling · 1940 · age 25
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 — Clearwater-County, Minnesota
Open full size
1940 US Federal Census — Clearwater-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01914-01112)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Oscar C. Vangstad | 62 | Head | Farmer | Norway |
| 2 | Tom Ollestad | 71 | Head | Farmer | Norway |
| 3 | Mrs. Christiane Ollestad | 71 | Wife | — | Norway |
| 4 | Karl O. Ollestad | 33 | Son | Farm Laborer | Minnesota |
| 5 | Herbert S. Ollestad | 31 | Son | Field Man | Minnesota |
| 6 | Gust A. Johnson | 38 | Head | Farmer | Minnesota |
| 7 | Mrs. Clara Johnson | 38 | Wife | — | Minnesota |
| 8 | Nilmer Johnson | 16 | Son | Farm Laborer | Minnesota |
| 9 | Muriel Johnson | 14 | Daughter | — | Minnesota |
| 10 | Lester Johnson | 12 | Son | — | Minnesota |
| 11 | Duane Johnson | 7 | Son | — | Minnesota |
| 12 | Jennie Johnson | 2 | Daughter | — | Minnesota |
| 13 | Marlin Johnson | 1 | Son | — | Minnesota |
| 14 | Oliver Nestrum | 48 | Head | Farmer | Minnesota |
| 15 | Mrs. Hilma Nestrum | 40 | Wife | — | Minnesota |
| 16 | Harvey Nestrum | 20 | Son | Farm Laborer | Minnesota |
| 17 | Arthur Nestrum | 18 | Son | Farm Laborer | Minnesota |
| 18 | Viola Nestrum | 17 | Daughter | — | Minnesota |
| 19 | Doris Nestrum | 15 | Daughter | — | Minnesota |
| 20 | Lila Nestrum | 14 | Daughter | — | Minnesota |
| 21 | David Nestrum | 10 | Son | — | Minnesota |
| 22 | Ardis Nestrum | 7 | Daughter | — | Minnesota |
| 23 | Clayton Nestrum | 3 | Son | — | Minnesota |
| 24 | Adolph L. Johnson | 61 | Head | Farmer | Minnesota |
| 25 | Mrs. Marie Johnson | 62 | Wife | — | Norway |
| 26 | Clarence Johnson | 32 | Son | Farm Laborer | Minnesota |
| 27 | Myrtle Johnson | 25 | Daughter | — | Minnesota |
| 28 | Arnold Johnson THIS PERSON | 20 | Son | Farm Laborer | Minnesota |
| 29 | Rodger Nestrum | 7 | Grandson | — | Minnesota |
| 30 | Niles Olson | 68 | Head | Farmer | Sweden |
| 31 | Mrs. Christina Olson | 66 | Wife | — | Sweden |
| 32 | Edwin Hickberg | 45 | Son | Farm Laborer | Minnesota |
| 33 | Gustav Olson | 25 | Son | Farm Laborer | Minnesota |
| 34 | Gladys Olson | 24 | Daughter-in-law | — | No. Dakota |
| 35 | Gwendolyn Olson | 0 | Granddaughter | — | Minnesota |
| 36 | George Postier | 56 | Head | Farmer | Minnesota |
| 37 | Mrs. Betty Postier | 47 | Wife | — | Nebraska |
| 38 | Maxwell Postier | 24 | Son | Farm Laborer | Canada |
| 39 | Grayson Postier | 23 | Son | Farm Laborer | Canada |
| 40 | John Postier | 22 | Son | Farm Laborer | Canada |
Related Census Records
Pedigree Summary
Arnold + 2 siblings
Gen 1 · 4 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)