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John Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grant-County, Minnesota
Our Model Tree links this John Jensen across the 1920, 1930 and 1940 US Censuses in Grant-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Minnesota |
| Surname | Jensen |
| Given Name | John O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Land twp. |
| 1935 Residence (County) | Grant |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | G 8 |
| 1935 Residence | Minnesota |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Land Twp |
| Est. Birth Year | ~1885 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alice Jensen | Daughter | — | 2 | ~1938 |
| Jean Jensen | Daughter | — | 16 | ~1924 |
| John Jensen | Head | — | 55 | ~1885 |
| John Jensen | Son | — | 5 | ~1935 |
| Verle Jensen | Son | — | 22 | ~1918 |
| Nellie Jensen | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Grant, Minnesota
Head, age 32
Grant, Minnesota · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1894 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1930
Grant, Minnesota
Head, age 45
Grant, Minnesota · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | First papers filed |
| Year of Immigration | 1891 |
| Age at First Marriage | 32 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 42 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Grant-County, Minnesota
Head, age 55
Grant-County, Minnesota · implied b. ~1885 — 6 household members
| Surname | Jensen |
| Given Name | John O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Land twp. |
| 1935 Residence (County) | Grant |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | G 8 |
| 1935 Residence | Minnesota |
| 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 John Jensen 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 Jensen
Head · 1940 · age 55 · b. ~1885 · Minnesota
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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 — Grant-County, Minnesota
Open full size
1940 US Federal Census — Grant-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01924-00190)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret S. Lewis | 36 | Wife | Housework | England |
| 42 | Ellie L. Lewis | 14 | Son | — | South Dakota |
| 43 | Berton L. Lewis | 12 | Son | — | Minnesota |
| 44 | William L. Lewis | 11 | Son | — | Minnesota |
| 45 | Aris J. Lewis | 10 | Daughter | — | Minnesota |
| 46 | Shirley A. Lewis | 6 | Daughter | — | Minnesota |
| 47 | Cathleen M. Lewis | 4 | Daughter | — | Minnesota |
| 48 | James Armour | 61 | Head | Farmer | Scotland |
| 49 | Margaret E. Armour | 60 | Wife | Housework | Illinois |
| 50 | James Jr. Armour | 34 | Son | Trucker | Illinois |
| 51 | John O. Gullumsvold | 51 | Head | Farmer | Minnesota |
| 52 | Richard S. Gullumsvold | 25 | Son | Helper On Farm | North Dakota |
| 53 | Doris M. Gullumsvold | 16 | Daughter | Housekeeper | North Dakota |
| 54 | Harold J. Gullison | 20 | Head | Farmwork | Minnesota |
| 55 | Myrtle A. Gullison | 28 | Wife | Housework | Minnesota |
| 56 | Muriel H. Gullison | 5 | Daughter | — | Minnesota |
| 57 | Carmen M. Gullison | 5 | Daughter | — | Minnesota |
| 58 | Elaine L. Gullison | 4 | Daughter | — | Minnesota |
| 59 | Harry O. Gullison | 1 | Son | — | Minnesota |
| 60 | Harry Murray | 22 | Laborer | Farmwork | North Dakota |
| 61 | Arne A. Eklund | 53 | Head | Farmer | Minnesota |
| 62 | Leonia Eklund | 67 | Wife | Housework | Sweden |
| 63 | Walter J. Eklund | 27 | Son | Helper On Home Farm | Minnesota |
| 64 | Evelyn M. Eklund | 25 | Daughter | Helper In Home Farm | Minnesota |
| 65 | Rudolph S. Eklund | 23 | Son | Helper On Home Farm | Minnesota |
| 66 | Clarence S. Eklund | 21 | Son | — | Minnesota |
| 67 | Andrew X. Lindquist | 57 | Head | Farmer | Minnesota |
| 68 | Anna W. Lindquist | 44 | Wife | Housework | Minnesota |
| 69 | Harold D. Lindquist | 9 | Son | — | Minnesota |
| 70 | John O. Jensen THIS PERSON | 55 | Head | Farmer | Denmark |
| 71 | Nellie H. Jensen | 42 | Wife | Housework | Illinois |
| 72 | Verle H. Jensen | 22 | Son | Mechanic | Nebraska |
| 73 | Jean E. Jensen | 16 | Daughter | — | Minnesota |
| 74 | John H. Jensen | 5 | Son | — | Minnesota |
| 75 | Alice A. Jensen | 2 | Daughter | — | Minnesota |
| 76 | Bernard Thorstad | 56 | Head | Farmer | Minnesota |
| 77 | Cora B. Thorstad | 34 | Wife | Housework | Minnesota |
| 78 | Myles L. Thorstad | 18 | Son | Laborer | Minnesota |
| 79 | Edsel B. Thorstad | 17 | Son | Helper On Home Farm | Minnesota |
| 80 | Eugene S. Thorstad | 15 | Son | — | 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)