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Jacob Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fallon-County, Montana
Our Model Tree links this Jacob Johnson across the 1920, 1930 and 1940 US Censuses in Fallon-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 4-person household.
Age 60
b. ~1880
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fallon-County, Montana |
| Surname | Johnson |
| Given Name | Jacob |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | School District 19 New Lincoln |
| 1935 Residence (County) | Fallon |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | School District 19 New Lincoln |
| Est. Birth Year | ~1880 |
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 Jacob | Age | Birth yr |
|---|---|---|---|---|
| Harvey Johnson | Son | — | 13 | ~1927 |
| Art Johnson | Son | — | 16 | ~1924 |
| Dagny Johnson | Spouse | — | 57 | ~1883 |
| Jacob Johnson | Head | — | 60 | ~1880 |
Census Appearances
1920
Fallon, Montana
Head, age 40
Fallon, Montana · implied b. ~1880
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Johnson |
| Given Name | Jacob B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Norway |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Norway |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | norway |
1930
Fallon, Montana
Head, age 50
Fallon, Montana · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jacob B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 42 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Veteran | No |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Fallon-County, Montana
Head, age 60
Fallon-County, Montana · implied b. ~1880 — 4 household members
| Surname | Johnson |
| Given Name | Jacob |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | School District 19 New Lincoln |
| 1935 Residence (County) | Fallon |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Jacob Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Jacob Johnson
Head · 1940 · age 60 · b. ~1880 · 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 — Fallon-County, Montana
Open full size
1940 US Federal Census — Fallon-County, Montana
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-02218-00032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ferdy Carlson | 36 | Head | Farmer | Minnesota |
| 2 | Edith Carlson | 29 | Wife | — | South Dakota |
| 3 | Fern Carlson | 9 | Daughter | — | North Dakota |
| 4 | Shirley Carlson | 4 | Daughter | — | Montana |
| 5 | Ferdella Carlson | 1 | Daughter | — | Montana |
| 6 | Theodore Iverson | 34 | Head | Farmer | Minnesota |
| 7 | Bernice Iverson | 29 | Wife | — | Montana |
| 8 | Nadine Iverson | 7 | Daughter | — | Montana |
| 9 | Gloria Iverson | 5 | Daughter | — | Montana |
| 10 | Theodore Iverson | 2 | Son | — | Montana |
| 11 | John Iverson | 1 | Son | — | Montana |
| 12 | George Huether | 26 | Head | Farmer | Montana |
| 13 | Hulda Huether | 29 | Wife | — | Montana |
| 14 | Christine Fuchs | 20 | Servant | Housekeeper | Montana |
| 15 | Jacob Johnson THIS PERSON | 60 | Head | Farmer | Norway |
| 16 | Dagny Johnson | 57 | Wife | — | Norway |
| 17 | Art Johnson | 16 | Son | — | Montana |
| 18 | Harvey Johnson | 13 | Son | — | Montana |
| 19 | Harry Cunningham | 58 | Head | Farmer | Ireland |
| 20 | Thomas Cunningham | 17 | Son | Laborer | Montana |
| 21 | Joseph Cunningham | 15 | Son | — | Montana |
| 22 | Alice Cunningham | 13 | Daughter | — | Montana |
| 23 | Patrick Horan | 50 | Brother | Farmer | Ireland |
| 24 | Robert J. Irvine | 73 | Head | Farmer | Vermont |
| 25 | Robert W. Irvine | 40 | Son | Farmer | Illinois |
| 26 | Gertrude Irvine | 34 | Daughter-in-law | — | South Dakota |
| 27 | Robert Irvine | 12 | Grandson | — | Montana |
| 28 | Lloyd C. Irvine | 9 | Grandson | — | Montana |
| 29 | Carol Ann Irvine | 5 | Granddaughter | — | Montana |
| 30 | Roland Irvine | 51 | Head | Farmer | Illinois |
| 31 | Ruth Irvine | 34 | Wife | — | Minnesota |
| 32 | Arnold Szerbat | 33 | Head | Farmer | Wisconsin |
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)