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John Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pembina-County, North Dakota
Our Model Tree links this John Olson across the 1920, 1930 and 1940 US Censuses in Pembina-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Male
Head
Born: Iceland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pembina-County, North Dakota |
| Surname | Olson |
| Given Name | John Q. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Iceland |
| 1935 Residence (City) | Akra Township |
| 1935 Residence (County) | Pembina |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | iceland |
| Occupation | Farmer |
| Township / Ward | Akra Township |
| Est. Birth Year | ~1875 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Olson | Head | — | 65 | ~1875 |
| Peter Olson | Son | — | 35 | ~1905 |
| Stephan Olson | Son | — | 20 | ~1920 |
| Ellen Olson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Pembina, North …
Head, age 41
Pembina, North Dakota · implied b. ~1879 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iceland |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Iceland |
| Mother's Birthplace | Iceland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Icelandic |
| Home Owned/Rented | R |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | iceland |
1930
Pembina, North …
Head, age 51
Pembina, North Dakota · implied b. ~1879 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | John G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iceland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 28 |
| Father's Birthplace | Iceland |
| Mother's Birthplace | Iceland |
| Occupation | Farmer |
| Industry | Grain Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Icelandic |
| Home Owned/Rented | O |
| Home Value / Rent | 600 |
| Birthplace (normalized) | iceland |
1940
Pembina-County, North …
Head, age 65
Pembina-County, North Dakota · implied b. ~1875 — 4 household members
| Surname | Olson |
| Given Name | John Q. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Iceland |
| 1935 Residence (City) | Akra Township |
| 1935 Residence (County) | Pembina |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | iceland |
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 John Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Olson
Head · 1940 · age 65 · b. ~1875 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pembina-County, North Dakota
Open full size
1940 US Federal Census — Pembina-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03009-00028)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oscar P. Anderson | 38 | Head | Farmer | North Dakota |
| 42 | Edna B. Anderson | 35 | Wife | — | North Dakota |
| 43 | Delores V. Anderson | 15 | Daughter | — | North Dakota |
| 44 | Angelyn J. Anderson | 7 | Daughter | — | North Dakota |
| 45 | Charlotte M. Anderson | 4 | Daughter | — | North Dakota |
| 46 | William B. Vivatson | 46 | Head | Farmer | North Dakota |
| 47 | Hilda B. Vivatson | 43 | Wife | — | North Dakota |
| 48 | Robert M. Vivatson | 20 | Son | Laborer | North Dakota |
| 49 | William M. Vivatson | 14 | Son | — | North Dakota |
| 50 | Gloria J. Vivatson | 9 | Daughter | — | North Dakota |
| 51 | John O. Amundson | 54 | Head | Farmer | North Dakota |
| 52 | Magnus Amundson | 54 | Wife | — | North Dakota |
| 53 | Oak Amundson | 22 | Daughter | — | North Dakota |
| 54 | John Amundson | 20 | Son | Laborer | North Dakota |
| 55 | Armunder Amundson | 15 | Son | Laborer | North Dakota |
| 56 | John Q. Olson THIS PERSON | 65 | Head | Farmer | Iceland |
| 57 | Ellen Olson | 62 | Wife | — | Iceland |
| 58 | Peter Olson | 35 | Son | Laborer | Canada English |
| 59 | Stephan G. Olson | 20 | Son | Laborer | Canada English |
| 60 | Lars E. Christianson | 50 | Head | Farmer | North Dakota |
| 61 | Runa Christianson | 50 | Wife | — | North Dakota |
| 62 | Elmo J. Christianson | 19 | Son | Laborer | North Dakota |
| 63 | Emily S. Christianson | 18 | Daughter | — | North Dakota |
| 64 | Ethel D. Christianson | 17 | Daughter | — | North Dakota |
| 65 | Evelyn Christianson | 15 | Daughter | — | North Dakota |
| 66 | Mavis S. Christianson | 13 | Daughter | — | North Dakota |
| 67 | Elmo Swenson | 13 | Lodger | Laborer | North Dakota |
| 68 | Christian J. Byron | 36 | Head | Farmer | North Dakota |
| 69 | Mollie Byron | 37 | Wife | — | North Dakota |
| 70 | Ethel L. A. Byron | 8 | Daughter | — | North Dakota |
| 71 | Olive J. Byron | 6 | Daughter | — | North Dakota |
| 72 | Chris J. Byron | 1 | Son | — | North Dakota |
| 73 | Fred O. Olafson | 47 | Head | Laborer | Iceland |
| 74 | Bertha Olafson | 42 | Wife | — | North Dakota |
| 75 | Pearl A. Olafson | 17 | Daughter | — | North Dakota |
| 76 | Eleanor Olafson | 13 | Daughter | — | North Dakota |
| 77 | Frederick Olafson | 7 | Son | — | North Dakota |
| 78 | Emil Ryckert | 25 | Son-in-law | Laborer | North Dakota |
| 79 | Margaret S. Ryckert | 19 | Daughter | — | North Dakota |
| 80 | Beverly R. Ryckert | 0 | Daughter | — | North Dakota |
Related Census Records
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)