OJ
Oliver Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kandiyohi-County, Minnesota
Our Model Tree links this Oliver Johnson across the 1930 and 1940 US Censuses in Kandiyohi-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kandiyohi-County, Minnesota |
| Surname | Johnson |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kandiyohi |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Colfax Twp |
| Est. Birth Year | ~1929 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oliver | Age | Birth yr |
|---|---|---|---|---|
| Eugene Johnson | Head | — | 51 | ~1889 |
| Anna Johnson | Spouse | — | 48 | ~1892 |
| George Johnson | Son | — | 13 | ~1927 |
| Richard Johnson | Son | — | 6 | ~1934 |
| Harlow Johnson | Son | — | 16 | ~1924 |
| Elias Johnson | Son | — | 10 | ~1930 |
| Rubie Johnson | Daughter | — | 8 | ~1932 |
| Doris Johnson | Daughter | — | 19 | ~1921 |
| Oliver Johnson | Son | — | 11 | ~1929 |
Census Appearances
1930
Kandiyohi, Minnesota
Son, age 1
Kandiyohi, Minnesota · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Oliver W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Kandiyohi-County, Minnesota
Son, age 11
Kandiyohi-County, Minnesota · implied b. ~1929 — 9 household members
| Surname | Johnson |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kandiyohi |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Minnesota |
| 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 Oliver Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Oliver Johnson
Son · 1940 · age 11 · b. ~1929 · Minnesota
★ You are viewing this record
Sibling
Elias Johnson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Johnson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rubie Johnson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Johnson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harlow Johnson
Sibling · 1940 · age 16
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 — Kandiyohi-County, Minnesota
Open full size
1940 US Federal Census — Kandiyohi-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01930-00073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice M. Valgrich | 2 | Daughter | — | Minnesota |
| 42 | Eugene Johnson | 51 | Head | Farmer | Minnesota |
| 43 | Anna Johnson | 48 | Wife | — | Minnesota |
| 44 | Doris Johnson | 19 | Daughter | Housework | Minnesota |
| 45 | Harlow Johnson | 16 | Son | Farm Laborer | Minnesota |
| 46 | George Johnson | 13 | Son | — | Minnesota |
| 47 | Elias Johnson | 10 | Son | — | Minnesota |
| 48 | Oliver Johnson THIS PERSON | 11 | Son | — | Minnesota |
| 49 | Rubie Johnson | 8 | Daughter | — | Minnesota |
| 50 | Richard Johnson | 6 | Son | — | Minnesota |
| 51 | Myron Christiansen | 28 | Head | Farmer | So Dakota |
| 52 | Grace Christiansen | 24 | Wife | — | So Dakota |
| 53 | Carol Christiansen | 4 | Son | — | Minnesota |
| 54 | Evan Christiansen | 3 | Son | — | Minnesota |
| 55 | Lars Christiansen | 1 | Son | — | Minnesota |
| 56 | Wareham Paul | 44 | Head | Farmer | So Dakota |
| 57 | Nora Paul | 18 | Daughter | Housekeeper | So Dakota |
| 58 | Edna Paul | 15 | Daughter | — | So Dakota |
| 59 | Winnefred Paul | 12 | Daughter | — | So Dakota |
| 60 | Frank E. Paulsen | 53 | Head | Farmer | Minnesota |
| 61 | Nellie M. Paulsen | 23 | Daughter | Housekeeper | Minnesota |
| 62 | Clarence Burns | 26 | Head | Farmer | Minnesota |
| 63 | Martha Burns | 24 | Wife | — | Minnesota |
| 64 | Margaret J. Burns | 3 | Daughter | — | Minnesota |
| 65 | Martha June Burns | 1 | Daughter | — | Minnesota |
| 66 | Charles Nelson | 34 | Head | Farmer | Iowa |
| 67 | Kate Nelson | 24 | Wife | — | Minnesota |
| 68 | Violet Nelson | 3 | Daughter | — | Minnesota |
| 69 | Elmer Nelson | 1 | Son | — | Minnesota |
| 70 | Albert Nelson | 31 | Brother | Laborer | Iowa |
| 71 | Clara Nelson | 28 | Sister in law | — | Minnesota |
| 72 | Marylin Nelson | 5 | Niece | — | Minnesota |
| 73 | Alvina Nelson | 1 | Niece | — | Minnesota |
| 74 | Soren L. Jensen | 43 | Head | Farmer | So Dakota |
| 75 | Julia Jensen | 40 | Wife | — | So Dakota |
| 76 | Allen S. Jensen | 19 | Son | Farm Laborer | Minnesota |
| 77 | Loraine N. Jensen | 18 | Daughter | Housekeeper | Minnesota |
| 78 | Millard S. Jensen | 16 | Son | — | Minnesota |
| 79 | Gloria J. Jensen | 12 | Daughter | — | Minnesota |
| 80 | Erick P. Erickson | 74 | Father in law | — | Sweden |
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)