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Emma Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buchanan-County, Missouri
Our Model Tree links this Emma Olson across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Female
Head
Born: Switzerland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Missouri |
| Surname | Olson |
| Given Name | Emma A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Switzerland |
| 1935 Residence (City) | St. Joseph city |
| 1935 Residence (County) | Buchanan |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Township / Ward | St Joseph City |
| Est. Birth Year | ~1873 |
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 Emma | Age | Birth yr |
|---|---|---|---|---|
| Emma Olson | Head | — | 67 | ~1873 |
| Oliver Olson | Son | — | 35 | ~1905 |
| Edward Olson | Son | — | 32 | ~1908 |
| Laura Olson | Daughter | — | 42 | ~1898 |
Census Appearances
1920
Buchanan, Missouri
Spouse, age 47
Buchanan, Missouri · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Year of Naturalization | 1894 |
| Birthplace (normalized) | switzerland |
1930
Buchanan, Missouri
Other, age 57
Buchanan, Missouri · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1885 |
| Age at First Marriage | 19 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | Salesman |
| Industry | Retail Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Buchanan-County, Missouri
Head, age 67
Buchanan-County, Missouri · implied b. ~1873 — 4 household members
| Surname | Olson |
| Given Name | Emma A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Switzerland |
| 1935 Residence (City) | St. Joseph city |
| 1935 Residence (County) | Buchanan |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Emma Olson
Head · 1940 · age 67 · b. ~1873 · Missouri
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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 — Buchanan-County, Missouri
Open full size
1940 US Federal Census — Buchanan-County, Missouri
Page Contents
15 people indexed on this census page (nara:1940:m-t0627-02087-00513)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | F. Marilyn Morgas | Morgan | 20 | Daughter | Fountain Girl | Iowa |
| 42 | John S. Morgas | Morgan | 16 | Son | Delivery Boy | Missouri |
| 43 | Eugene B. Guier | 33 | Head | Salesman | Texas |
| 44 | Helen G. Guier | 26 | Wife | Nurse | Kansas |
| 45 | Troupe S. Guier | 2 | Son | — | Missouri |
| 46 | Emma A. Olson THIS PERSON | 67 | Head | — | Switzerland |
| 47 | Laura A. Olson | 42 | Daughter | Cashier | Missouri |
| 48 | Oliver E. Olson | 35 | Son | Owner | Missouri |
| 49 | Edward F. Olson | 32 | Son | Driver | Missouri |
| 51 | Otha D. Dunnihoo | 33 | Head | Laborer | Missouri |
| 52 | Esther R. Dunnihoo | 29 | Wife | — | Missouri |
| 53 | William F. Wertick | 76 | Head | Farmer | Austria |
| 54 | Philomena Wertick | 77 | Wife | — | Ohio |
| 55 | John L. Wertick | 25 | Son | Checker | Missouri |
| 56 | Mary M. Wertick | 32 | Daughter | — | Missouri |
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)