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John Jacobson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Morton-County, North Dakota
Our Model Tree links this John Jacobson across the 1920, 1930 and 1940 US Censuses in Morton-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 3-person household.
Age 80
b. ~1860
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Morton-County, North Dakota |
| Surname | Jacobson |
| Given Name | John O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 80 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Siona Township |
| 1935 Residence (County) | Morton |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Siona Township |
| Est. Birth Year | ~1860 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rachel Jacobson | Spouse | — | 65 | ~1875 |
| Melvin Jacobson | Son | — | 32 | ~1908 |
| John Jacobson | Head | — | 80 | ~1860 |
Census Appearances
1920
Morton, North …
Head, age 60
Morton, North Dakota · implied b. ~1860 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | oa |
| 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 | 1888 |
| Birthplace (normalized) | norway |
1930
Morton, North …
Head, age 69
Morton, North Dakota · implied b. ~1861 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 38 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Morton-County, North …
Head, age 80
Morton-County, North Dakota · implied b. ~1860 — 3 household members
| Surname | Jacobson |
| Given Name | John O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 80 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Siona Township |
| 1935 Residence (County) | Morton |
| Naturalization Status | Naturalized |
| 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 John Jacobson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Jacobson
Head · 1940 · age 80 · b. ~1860 · North Dakota
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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 — Morton-County, North Dakota
Open full size
1940 US Federal Census — Morton-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03007-00751)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tobias O Olson | 68 | Head | Farmer | Norway |
| 42 | Olivine Olson | 61 | Wife | — | Norway |
| 43 | Arnold H Olson | 25 | Son | Farmer | Norway |
| 44 | Lillian M Olson | 22 | Daughter | — | North Dakota |
| 45 | Evangeline R Olson | 20 | Daughter | — | North Dakota |
| 46 | Adeline B Olson | 20 | Daughter | Grade Teacher | North Dakota |
| 47 | Reynold Olson | 18 | Son | — | North Dakota |
| 48 | Winona C Olson | 16 | Daughter | — | North Dakota |
| 49 | Jerry Olson | 5 | Grandson | — | North Dakota |
| 50 | Tom R Olson | 27 | Head | Farmer | Norway |
| 51 | Christ G Olson | 25 | Brother | Farmer | Norway |
| 52 | Elmer G Wellman | 28 | Head | Farmer | North Dakota |
| 53 | Oscar S Wellman | 26 | Brother | Farmer | North Dakota |
| 54 | John A Anderson | 56 | Head | Farmer | Sweden |
| 55 | Oliver C Anderson | 34 | Head | Farmer | North Dakota |
| 56 | Clara B Anderson | 28 | Wife | — | South Dakota |
| 57 | June B Anderson | 8 | Daughter | — | South Dakota |
| 58 | Alice J Anderson | 7 | Daughter | — | North Dakota |
| 59 | Clayton M Anderson | 4 | Son | — | North Dakota |
| 60 | Laverl C Anderson | 1 | Son | — | North Dakota |
| 61 | Wilfred H Oheim | 21 | Brother-in-law | Laborer | South Dakota |
| 62 | Peter R Peterson | 69 | Head | Farmer | Norway |
| 63 | Thora Peterson | 69 | Wife | — | Norway |
| 64 | Thoddie P Peterson | 39 | Son | Farmer | North Dakota |
| 65 | Barney Peterson | 34 | Son | Farmer | North Dakota |
| 66 | Fritz M Feland | 39 | Head | Preparing For Market | North Dakota |
| 67 | Delores M Feland | 27 | Sister | — | North Dakota |
| 68 | Henry C Fehring | 54 | Hired hand | Laborer | Germany |
| 69 | John O Jacobson THIS PERSON | 80 | Head | — | Norway |
| 70 | Rachel Jacobson | 65 | Wife | — | Norway |
| 71 | Melvin S Jacobson | 32 | Son | Auto Mechanic | North Dakota |
| 72 | Nels O Seim | 59 | Head | Farmer | Iowa |
| 73 | Selma J Seim | 47 | Wife | — | North Dakota |
| 74 | Ruth S Seim | 19 | Daughter | — | North Dakota |
| 75 | Beatrice S Seim | 17 | Daughter | — | North Dakota |
| 76 | Ervan A Olin | 33 | Head | Farmer | North Dakota |
| 77 | Thelma A Olin | 28 | Wife | — | North Dakota |
| 78 | Don M Olin | 9 | Son | — | North Dakota |
| 79 | Ardys Olin | 7 | Daughter | — | North Dakota |
| 80 | Alton J Olin | 31 | Brother | Truck Driver | North Dakota |
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)