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Emma Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mccone-County, Montana
Our Model Tree links this Emma Olson across the 1930 and 1940 US Censuses in Mccone-County, Montana (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Female
Daughter
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mccone-County, Montana |
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | school district 22 |
| 1935 Residence (County) | McCone |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | School District 22 |
| Est. Birth Year | ~1923 |
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 Emma | Age | Birth yr |
|---|---|---|---|---|
| Alma Olson | Daughter | — | 9 | ~1931 |
| George Olson | Son | — | 16 | ~1924 |
| Nolan Olson | Daughter | — | 7 | ~1933 |
| Myrtle Olson | Daughter | — | 13 | ~1927 |
| Elmer Olson | Son | — | 4 | ~1936 |
| Elmer Olson | Head | — | 51 | ~1889 |
| Lillian Olson | Daughter | — | 15 | ~1925 |
| Emma Olson | Daughter | — | 17 | ~1923 |
| Myra Olson | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Mccone, Montana
Daughter, age 7
Mccone, Montana · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Washington |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Mccone-County, Montana
Daughter, age 17
Mccone-County, Montana · implied b. ~1923 — 9 household members
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | school district 22 |
| 1935 Residence (County) | McCone |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Emma Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Emma Olson
Daughter · 1940 · age 17 · b. ~1923 · Montana
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Sibling
Myra Olson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nolan Olson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Olson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Olson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Olson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Olson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Olson
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 — Mccone-County, Montana
Open full size
1940 US Federal Census — Mccone-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02223-00509)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman Pepos | 61 | Head | Farmer | Wisconsin |
| 2 | Deena Pepos | 51 | Wife | — | Iowa |
| 3 | Eva Pepos | 19 | Daughter | — | Montana |
| 4 | Katherine Hall | 35 | Head | Teacher | Wisconsin |
| 5 | Nils J. Pefalund | 62 | Head | Farmer | Germany |
| 6 | Anton Hlawata | 51 | Head | Farmer | Pennsylvania |
| 7 | Hans Stahlheim | 65 | Head | Farmer | Norway |
| 8 | Lena Stahlheim | 57 | Wife | — | Iowa |
| 9 | Morris Stahlheim | 28 | Son | Farmer | North Dakota |
| 10 | Harry Stahlheim | 23 | Son | Tractor Operator | Montana |
| 11 | Lawrence Stahlheim | 21 | Son | Laborer | Montana |
| 12 | Annie Stahlheim | 18 | Daughter | — | Montana |
| 13 | Halvor Lein | 51 | Head | Farmer | Norway |
| 14 | Clara Lein | 48 | Wife | — | South Dakota |
| 15 | Patience Lein | 16 | Daughter | — | North Dakota |
| 16 | Harold Lein | 15 | Son | — | Montana |
| 17 | Elden Lein | 13 | Son | — | Montana |
| 18 | Edward Lein | 11 | Son | — | Montana |
| 19 | Shirley Lein | 7 | Daughter | — | Montana |
| 20 | Elmer Olson | 51 | Head | Farmer | Wisconsin |
| 21 | Emma Olson THIS PERSON | 17 | Daughter | — | Montana |
| 22 | George Olson | 16 | Son | — | Montana |
| 23 | Lillian Olson | 15 | Daughter | — | Montana |
| 24 | Myrtle Olson | 13 | Daughter | — | Montana |
| 25 | Myra Edna Olson | 11 | Daughter | — | Montana |
| 26 | Alma Olson | 9 | Daughter | — | Montana |
| 27 | Nolan Olson | 7 | Daughter | — | Montana |
| 28 | Elmer Jr. Olson | 4 | Son | — | Montana |
| 29 | William Pepos | 54 | Head | Farmer | South Dakota |
| 30 | Gertrude Pepos | 52 | Wife | — | Washington |
| 31 | John Reed | 65 | Head | Farmer | Wisconsin |
| 32 | Bolyard Simenson | 47 | Laborer | Farmer | Norway |
| 33 | Donald Simenson | 14 | Son | — | Montana |
| 34 | Realtor Simenson | 9 | Son | — | Montana |
| 35 | Donald Simenson | 3 | Son | — | Montana |
| 36 | John Douglas | 50 | Head | Farmer | South Dakota |
| 37 | Bertina Douglas | 38 | Wife | — | North Dakota |
| 38 | Oscar Michalson | 43 | Head | Farmer | North Dakota |
| 39 | Albert B. Michalson | 39 | Brother | Farmer | North Dakota |
| 40 | Martha Michalson | 70 | Mother | — | Norway |
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)