RO
Ruth Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this Ruth Olson across the 1920, 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed), with identified parents Ole & Abigail — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Minot city |
| 1935 Residence (County) | Ward |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Minot City |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Olson | Daughter | — | 18 | ~1922 |
| Ruth Olson | Daughter | — | 25 | ~1915 |
| Carol Olson | Daughter | — | 9 | ~1931 |
| J Stanley | Son | — | 34 | ~1906 |
| Lena Olson | Head | — | 60 | ~1880 |
Census Appearances
1920
Ward, North …
Daughter, age 5
Ward, North Dakota · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Ward, North …
Daughter, age 15
Ward, North Dakota · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Ward-County, North …
Daughter, age 25
Ward-County, North Dakota · implied b. ~1915 — 5 household members
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Minot city |
| 1935 Residence (County) | Ward |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| 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 Ruth Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Olson (~0.92 confidence) and mother Abigail Olson (~0.92 confidence) and mother Inga Olson (~0.92 confidence) and mother Lena Olson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ole Olson
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Abigail Olson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Inga Olson
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Lena Olson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Olson
Daughter · 1940 · age 25 · b. ~1915 · North Dakota
★ You are viewing this record
Sibling
Carol Olson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Olson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Stanley
Sibling · 1940 · age 34
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 — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-00677)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ermina Marshall | 23 | Maid | General Housework | North Dakota |
| 42 | Kermit Sandland | 25 | Head | Fireman | North Dakota |
| 43 | Marie Sandland | 24 | Wife | — | North Dakota |
| 44 | Ledger Du Paul | 28 | Head | Painter | Minnesota |
| 45 | Gladys Du Paul | 27 | Wife | — | North Dakota |
| 46 | Larry Du Paul | 1 | Son | — | North Dakota |
| 47 | Goldie Grannon | 28 | Head | Saleswoman | North Dakota |
| 48 | Winfield Flagstad | 20 | Head | Laborer | North Dakota |
| 49 | Mildred Flagstad | 19 | Wife | — | Indiana |
| 50 | Peter Miller | 34 | Head | Janitor | North Dakota |
| 51 | Inez Miller | 30 | Wife | Bookkeeper | Minnesota |
| 52 | James Miller | 0 | Son | — | North Dakota |
| 53 | Veronica Ganje | 19 | Maid | Housework | North Dakota |
| 54 | Millie Hermanson | 42 | Head | — | Minnesota |
| 55 | Arthur Hermanson | 17 | Son | Laborer | North Dakota |
| 56 | Harlan Hermanson | 12 | Son | — | North Dakota |
| 57 | Harley Stolls | 54 | Head | Janitor | Indiana |
| 58 | Ada Stolls | 53 | Wife | Housework | Minnesota |
| 59 | Hugh Stolls | 20 | Son | — | North Dakota |
| 60 | Arlo Stolls | 16 | Son | — | North Dakota |
| 61 | Barbara Stolls | 13 | Daughter | — | North Dakota |
| 62 | Alice Joan Stolls | 11 | Daughter | — | North Dakota |
| 63 | Mrs. J. Jensen | 68 | Head | — | Minnesota |
| 64 | J. O. De Hart | 68 | Head | Tower Crossing | Indiana |
| 65 | Maud L. De Hart | 53 | Wife | — | California |
| 66 | Vernon De Hart | 34 | Son | Dishwasher | North Dakota |
| 67 | Richard De Hart | 17 | Son | Dishwasher | North Dakota |
| 68 | Lena Olson | 60 | Head | Seamstress | Norway |
| 69 | Ruth Olson THIS PERSON | 25 | Daughter | — | North Dakota |
| 70 | Marjorie Olson | 18 | Daughter | Bookkeeper | North Dakota |
| 71 | Carol Olson | 9 | Daughter | — | North Dakota |
| 72 | J. Stanley | 34 | Son | New Worker | North Dakota |
| 73 | Arthur M. Leslie | 46 | Head | Auto Bus Driver | South Dakota |
| 74 | Louise Leslie | 42 | Wife | — | Minnesota |
| 75 | Archie Leslie | 16 | Son | — | North Dakota |
| 76 | John Vanderluis | 65 | Head | Auditor | Minnesota |
| 77 | Elva Vanderluis | 59 | Wife | — | Ohio |
| 78 | O. E. Sellung | 55 | Head | Boiler Maker | Minnesota |
| 79 | Clagot Sellung | 46 | Wife | — | Norway |
| 80 | Effie Harding | 21 | Daughter | Clerk | North Dakota |
Pedigree Summary
Ruth + 3 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)