OJ
Oliver Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Griggs, North Dakota
Our Model Tree links this Oliver Johnson across the 1920 and 1930 US Censuses in Griggs, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 13-person household.
Age 54
b. ~1876
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Griggs, North Dakota |
| Surname | Johnson |
| Given Name | Oliver K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Rosendal Township |
| Est. Birth Year | ~1876 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Oliver | Age | Birth yr |
|---|---|---|---|---|
| Martin Johnson | Son | — | 29 | ~1901 |
| John Asmus | Other | — | 32 | ~1898 |
| Edna Johnson | Daughter | — | 8 | ~1922 |
| Eliza Asmus | Spouse | — | 33 | ~1897 |
| Inga Johnson | Daughter | — | 22 | ~1908 |
| Alvin Johnson | Son | — | 15 | ~1915 |
| Oliver Johnson | Head | — | 54 | ~1876 |
| Julia Johnson | Spouse | — | 47 | ~1883 |
| Olga Johnson | Daughter | — | 19 | ~1911 |
| Inez Asmus | Daughter | — | 3 | ~1927 |
| Clifford Asmus | Son | — | 8 | ~1922 |
| Jennette Johnson | Daughter | — | 17 | ~1913 |
| Julia Asmus | Daughter | — | 10 | ~1920 |
Census Appearances
1920
Griggs, North …
Head, age 45
Griggs, North Dakota · implied b. ~1875 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Oliver |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | F |
| Birth State | Iowa |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | iowa |
1930
Griggs, North …
Head, age 54
Griggs, North Dakota · implied b. ~1876 — 13 household members
| Surname | Johnson |
| Given Name | Oliver K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| 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 Oliver Johnson across 2 US Census years (1920 and 1930) in Griggs, North Dakota, using XGBoost record linkage.
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This person
Anchor record
Oliver Johnson
Head · 1930 · age 54 · b. ~1876 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Griggs, North Dakota
Open full size
1930 US Federal Census — Griggs, North Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1736unit:0492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maude Provitt | 50 | Head | Farmer | Iowa |
| 2 | Warren Provitt | 20 | Son | Laborer | North Dakota |
| 3 | Florence Provitt | 18 | Daughter | — | North Dakota |
| 4 | Raymond Provitt | 11 | Son | — | North Dakota |
| 5 | Glen Provitt | 8 | Son | — | North Dakota |
| 6 | Ralph W. Chapman | 37 | Head | Farmer | Iowa |
| 7 | Angina Chapman | 44 | Wife | — | Norway |
| 8 | Olaf Pearson | 17 | Son | Laborer | North Dakota |
| 9 | Palmer Pearson | 13 | Step-son | — | North Dakota |
| 10 | Hartvig M. Leen | 22 | Head | Farmer | North Dakota |
| 11 | Odd O. Leen | 20 | Wife | — | North Dakota |
| 12 | Ione L. Leen | 1 | Daughter | — | North Dakota |
| 13 | Victor Magnuson | 47 | Head | Farmer | Sweden |
| 14 | Anna Magnuson | 40 | Wife | — | Minnesota |
| 15 | Mabel Magnuson | 22 | Daughter | — | North Dakota |
| 16 | Florence Magnuson | 19 | Daughter | Laborer | North Dakota |
| 17 | Hazel Magnuson | 17 | Daughter | — | North Dakota |
| 18 | Helman Stokken | 41 | Head | Farmer | Norway |
| 19 | Mathilda Stokken | 33 | Wife | — | Minnesota |
| 20 | Harry J. Stokken | 3 | Son | — | North Dakota |
| 21 | Martin J. Stenslie | 60 | Head | Farmer | Iowa |
| 22 | Johanna Stenslie | 47 | Wife | — | Norway |
| 23 | Lloyd Stenslie | 24 | Son | Farmer | North Dakota |
| 24 | Marion Stenslie | 20 | Son | Laborer | North Dakota |
| 25 | Margaret Stenslie | 15 | Daughter | — | North Dakota |
| 26 | Olee Larson | 66 | Head | Farmer | Norway |
| 27 | Ingeborg Larson | 65 | Wife | — | Norway |
| 28 | Lewis Larson | 29 | Son | Farmer | North Dakota |
| 29 | Lawrence Larson | 27 | Son | Farmer | North Dakota |
| 30 | Bernie Johnson | 24 | Son-in-law | Mechanic | Minnesota |
| 31 | Lillian Johnson | 23 | Daughter | — | North Dakota |
| 32 | Anton J. Falla | 51 | Head | Farmer | Norway |
| 33 | Jennie Falla | 47 | Wife | — | Sweden |
| 34 | Inge Falla | 26 | Daughter | Servant | North Dakota |
| 35 | Albert Falla | 22 | Son | — | North Dakota |
| 36 | Vilda Falla | 16 | Daughter | — | North Dakota |
| 37 | Otto Falla | 8 | Son | — | North Dakota |
| 38 | Oliver K. Johnson THIS PERSON | 54 | Head | Farmer | Iowa |
| 39 | Julia Johnson | 47 | Wife | — | Iowa |
| 40 | Martin Johnson | 29 | Son | Farmer | North Dakota |
| 41 | Inga Johnson | 22 | Daughter | Servant | North Dakota |
| 42 | Olga Johnson | 19 | Daughter | Servant | North Dakota |
| 43 | Jennette Johnson | 17 | Daughter | Servant | North Dakota |
| 44 | Alvin Johnson | 15 | Son | Laborer | North Dakota |
| 45 | Edna Johnson | 8 | Daughter | — | North Dakota |
| 46 | John R. Asmus | 32 | O | Farmer | Iowa |
| 47 | Eliza Asmus | 33 | Wife | — | Minnesota |
| 48 | Julia Asmus | 10 | Daughter | — | North Dakota |
| 49 | Clifford Asmus | 8 | Son | — | North Dakota |
| 50 | Inez Asmus | 3 | Daughter | — | North Dakota |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)