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Anna Olsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Valley-County, Montana
Our Model Tree links this Anna Olsen across the 1930 and 1940 US Censuses in Valley-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 7-person household.
Age 46
b. ~1894
Female
Spouse
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Valley-County, Montana |
| Surname | Olsen |
| Given Name | Anna M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Glasgow |
| 1935 Residence (County) | Valley |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Township / Ward | Glasgow |
| Est. Birth Year | ~1894 |
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 |
|---|---|---|---|---|
| Anne Olsen | Daughter | — | 24 | ~1916 |
| George Olsen | Son | — | 9 | ~1931 |
| Ruth Olsen | Daughter | — | 17 | ~1923 |
| Anna Olsen | Spouse | — | 46 | ~1894 |
| Paul Olsen | Son | — | 27 | ~1913 |
| Henrick Olsen | Head | — | 57 | ~1883 |
| Robert Olsen | Son | — | 14 | ~1926 |
Census Appearances
1930
Valley, Montana
Other, age 37
Valley, Montana · implied b. ~1893 — 44 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Anna M. |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 20 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Valley-County, Montana
Spouse, age 46
Valley-County, Montana · implied b. ~1894 — 7 household members
| Surname | Olsen |
| Given Name | Anna M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Glasgow |
| 1935 Residence (County) | Valley |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Olsen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Anna Olsen
Spouse · 1940 · age 46 · b. ~1894 · Montana
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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 — Valley-County, Montana
Open full size
1940 US Federal Census — Valley-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02233-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence P. Bretzke | 17 | Daughter | — | Montana |
| 2 | Shirley E. Bretzke | 15 | Daughter | — | Montana |
| 3 | Leo E. Bretzke | 11 | Son | — | Montana |
| 4 | Henrick F. Olsen | 57 | Head | Farmer | Denmark |
| 5 | Anna M. Olsen THIS PERSON | 46 | Wife | — | Denmark |
| 6 | Paul H. Olsen | 27 | Son | Farmer | Denmark |
| 7 | Anne L. Olsen | 24 | Daughter | — | Montana |
| 8 | Ruth E. Olsen | 17 | Daughter | — | Montana |
| 9 | Robert P. Olsen | 14 | Son | — | Montana |
| 10 | George G. Olsen | 9 | Son | — | Montana |
| 11 | Paul R. Rohrer | 41 | Head | Farmer | Pennsylvania |
| 12 | Sarah L. Rohrer | 32 | Wife | — | Canada English |
| 13 | Leonard R. Rohrer | 11 | Son | — | Canada English |
| 14 | Douglas A. Rohrer | 5 | Son | — | Canada English |
| 15 | Arnold M. Rohrer | 7 | Son | — | Minnesota |
| 16 | Dorothy M. Rohrer | 1 | Daughter | — | Montana |
| 17 | Julius Engen | 57 | Head | Farmer | Wisconsin |
| 18 | Mckee Anderson | 57 | Head | Farmer | Missouri |
| 19 | Josephine Anderson | 40 | Wife | — | Indiana |
| 20 | William M. Anderson | 18 | Son | Farm Laborer | Indiana |
| 21 | Jack M. Anderson | 16 | Son | — | Montana |
| 22 | Jo Ann Anderson | 10 | Daughter | — | Montana |
| 23 | Darling N. Anderson | 9 | Daughter | — | Montana |
| 24 | Arabelle Goldman | 78 | Mother-in-law | — | Indiana |
| 25 | James F. Mullen | 38 | Head | Farmer | Minnesota |
| 26 | Olive H. Mullen | 27 | Wife | — | Montana |
| 27 | Gerald E. Mullen | 6 | Son | — | Montana |
| 28 | Colleen R. Mullen | 1 | Daughter | — | Montana |
| 29 | Carl W. Person | 60 | Head | Farmer | Sweden |
| 30 | Jenie H. Person | 50 | Wife | — | North Dakota |
| 31 | Marvin J. Person | 13 | Son | — | Montana |
| 32 | Ruth M. Person | 7 | Daughter | — | Montana |
| 33 | Ivar Hinnebo | 55 | Head | Farmer | Norway |
| 34 | Augusta Hinnebo | 51 | Wife | — | Wisconsin |
| 35 | Norman F. Hinnebo | 21 | Son | — | Montana |
| 36 | Aileen L. Hinnebo | 17 | Daughter | — | Montana |
| 37 | Betty Bell J. Hinnebo | 12 | Daughter | — | Montana |
| 38 | Joan Janet L. Hinnebo | 8 | Daughter | — | Montana |
| 39 | Carol L. Hinnebo | 5 | Daughter | — | Montana |
| 40 | Arvid A. Hising | 52 | Head | Farmer | Minnesota |
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)