AO
Anna Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Adams-County, North Dakota
Our Model Tree links this Anna Olson across the 1930 and 1940 US Censuses in Adams-County, North Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, North Dakota |
| Surname | Olson |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Darling Springs Twp |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Darling Springs Twp |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Anna Olson | Daughter | — | 16 | ~1924 |
| Martin Olson | Head | — | 61 | ~1879 |
| Reynold Olson | Son | — | 24 | ~1916 |
| Arvid Olson | Son | — | 14 | ~1926 |
| Carl Olson | Son | — | 21 | ~1919 |
| Sven Olson | Son | — | 23 | ~1917 |
| Nellie Olson | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Adams, North …
Daughter, age 6
Adams, North Dakota · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Anna S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Veteran | No |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Adams-County, North …
Daughter, age 16
Adams-County, North Dakota · implied b. ~1924 — 7 household members
| Surname | Olson |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Darling Springs Twp |
| 1935 Residence (County) | Adams |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Anna Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Anna Olson
Daughter · 1940 · age 16 · b. ~1924 · North Dakota
★ You are viewing this record
Sibling
Sven Olson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Olson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Reynold Olson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arvid Olson
Sibling · 1940 · age 14
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 — Adams-County, North Dakota
Open full size
1940 US Federal Census — Adams-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02992-00054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Schwartz | 6 | Daughter | — | North Dakota |
| 42 | Darlene Schwartz | 5 | Daughter | — | North Dakota |
| 43 | Marjory Schwartz | 4 | Daughter | — | North Dakota |
| 44 | Albert Ganthner | 21 | Lodger | Farm Laborer | North Dakota |
| 45 | Jorgen Engraf | 57 | Head | Farmer | Norway |
| 46 | Karen Engraf | 56 | Wife | — | Norway |
| 47 | Arvid Engraf | 12 | Son | — | North Dakota |
| 48 | Robert R. Lee | 26 | Laborer | Farm Laborer | North Dakota |
| 49 | Svenny O. Swenson | 37 | Head | Farmer | Sweden |
| 50 | Dora Swenson | 33 | Wife | — | North Dakota |
| 51 | Hazel Swenson | 10 | Daughter | — | North Dakota |
| 52 | Allan Swenson | 5 | Son | — | North Dakota |
| 53 | Martin A. Olson | 61 | Head | Farmer | Sweden |
| 54 | Nellie Olson | 50 | Wife | — | Sweden |
| 55 | Reynold Olson | 24 | Son | Farmer | North Dakota |
| 56 | Sven Olson | 23 | Son | Laborer | North Dakota |
| 57 | Carl Olson | 21 | Son | Farm Laborer | North Dakota |
| 58 | Anna Olson THIS PERSON | 16 | Daughter | — | North Dakota |
| 59 | Arvid Olson | 14 | Son | — | North Dakota |
| 60 | Emma Hibberstad | 45 | Head | Farmer | Minnesota |
| 61 | Earl Hibberstad | 18 | Son | — | North Dakota |
| 62 | Floyd Hibberstad | 16 | Son | — | North Dakota |
| 63 | Doris Hibberstad | 11 | Daughter | — | North Dakota |
| 64 | O. J. Persons | 65 | Head | Farmer | Minnesota |
| 65 | Christina Persons | 60 | Wife | — | Sweden |
| 66 | Helmer A. Engraf | 35 | Head | Farmer | North Dakota |
| 67 | Ella Engraf | 36 | Wife | — | Iowa |
| 68 | Hazel Engraf | 11 | Daughter | — | North Dakota |
| 69 | Betty Engraf | 10 | Daughter | — | North Dakota |
| 70 | Richard Engraf | 8 | Son | — | North Dakota |
| 71 | Arnold Engraf | 7 | Son | — | North Dakota |
| 72 | Joseph O. Vatneberg | 32 | Head | Farmer | North Dakota |
| 73 | Francis Vatneberg | 31 | Wife | — | North Dakota |
| 74 | Ludvig Vatneberg | 11 | Son | — | North Dakota |
| 75 | Clement Vatneberg | 10 | Son | — | North Dakota |
| 76 | Mathilda Vatneberg | 7 | Daughter | — | North Dakota |
| 77 | Martin Vatneberg | 6 | Son | — | North Dakota |
| 78 | Elizabeth Vatneberg | 5 | Daughter | — | North Dakota |
| 79 | Eugene Vatneberg | 4 | Son | — | North Dakota |
| 80 | Laverna Vatneberg | 1 | Daughter | — | North Dakota |
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)