JJ
James Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Teton-County, Montana
Our Model Tree links this James Jensen across the 1930 and 1940 US Censuses in Teton-County, Montana (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Teton-County, Montana |
| Surname | Jensen |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | School Dist 51 Agawam |
| 1935 Residence (County) | Teton |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Laborer |
| Township / Ward | School Dist 51 Agawam |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| June Jensen | Daughter | — | 10 | ~1930 |
| James Jensen | Son | — | 18 | ~1922 |
| Lloyd Jensen | Son | — | 22 | ~1918 |
| John Jensen | Head | — | 53 | ~1887 |
| Geraldine Jensen | Daughter | — | 8 | ~1932 |
| V Jensen | Daughter | — | 16 | ~1924 |
| Veda Jensen | Spouse | — | 44 | ~1896 |
| Doris Jensen | Son | — | 20 | ~1920 |
| Mella Jensen | Daughter | — | 12 | ~1928 |
| John Jensen | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Teton, Montana
Son, age 8
Teton, Montana · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | James R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Idaho |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Teton-County, Montana
Son, age 18
Teton-County, Montana · implied b. ~1922 — 10 household members
| Surname | Jensen |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | School Dist 51 Agawam |
| 1935 Residence (County) | Teton |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 James Jensen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Jensen
Son · 1940 · age 18 · b. ~1922 · Montana
★ You are viewing this record
Sibling
Lloyd Jensen
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
V Jensen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Jensen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Jensen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Jensen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mella Jensen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Jensen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Teton-County, Montana
Open full size
1940 US Federal Census — Teton-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02232-00735)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Everett F Brading | 27 | Head | Farmer | Montana |
| 2 | Kathrine O Brading | 21 | Wife | None | Montana |
| 3 | Delbert E Brading | 2 | son | — | Montana |
| 4 | William Brading | 53 | Head | Farmer | Nebraska |
| 5 | Minnie S Brading | 49 | wife | None | Nebraska |
| 6 | Dorothy M Brading | 21 | daughter | Typing | Montana |
| 7 | Richard O Gemas | 17 | Hired hand | Digging Post | Montana |
| 8 | Oliver S Thomilson | 28 | Head | Manager | Canada-Eng |
| 9 | Doris M Thomilson | 25 | wife | None | Montana |
| 10 | Sharon L Thomilson | 1 | daughter | — | Montana |
| 11 | Otto F Schaefer | 49 | Head | Store Keeper | Minnesota |
| 12 | Rose C Schaefer | 46 | wife | Storekeeper | Minnesota |
| 13 | Andrew C Robinson | 47 | Head | Agent | Iowa |
| 14 | Eunice L Robinson | 43 | wife | None | Missouri |
| 15 | Rosie C Robinson | 23 | son | — | Nebraska |
| 16 | Jay H Robinson | 20 | son | — | Montana |
| 17 | Ray W Robinson | 17 | son | — | Montana |
| 18 | Andrew C Robinson | 14 | son | — | Montana |
| 19 | Eunice L Robinson | 13 | daughter | — | Montana |
| 20 | Johnie D Robinson | 9 | son | — | Montana |
| 21 | Cyrus M Hart | 50 | Head | Manager | S. Dakota |
| 22 | G. S. Heyer | 45 | Head | Farmer | Wisconsin |
| 23 | Martha D Heyer | 46 | wife | None | Wisconsin |
| 24 | Gordon A Heyer | 16 | son | — | Wisconsin |
| 25 | Lloyd Heyer | 15 | son | Laborer | Montana |
| 26 | Wesley Heyer | 12 | son | — | Montana |
| 27 | Gust Jr. Heyer | 9 | son | — | Montana |
| 28 | Dorothy J Heyer | 4 | daughter | — | Montana |
| 29 | John V Jensen | 53 | Head | Farmer | Idaho |
| 30 | Veda C Jensen | 44 | wife | None | Idaho |
| 31 | Lloyd J Jensen | 22 | son | Laborer | Idaho |
| 32 | Doris Jensen | 20 | son | Laborer | Idaho |
| 33 | James Jensen THIS PERSON | 18 | son | Laborer | Idaho |
| 34 | V. Pal Jensen | 16 | daughter | — | Idaho |
| 35 | Mella M Jensen | 12 | daughter | — | Idaho |
| 36 | June R Jensen | 10 | daughter | — | Montana |
| 37 | Geraldine T Jensen | 8 | daughter | — | Montana |
| 38 | John Jensen | 7 | daughter | — | Montana |
| 39 | Alex Zier | 25 | Head | Farmer | Montana |
| 40 | Kathrine Zier | 20 | wife | None | Montana |
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)