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Jack Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stillwater-County, Montana
Our Model Tree links this Jack Smith across the 1930 and 1940 US Censuses in Stillwater-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 10-person household.
Age 54
b. ~1886
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Stillwater-County, Montana |
| Surname | Smith |
| Given Name | Jack L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | School District 67, Buck Creek |
| 1935 Residence (County) | Stillwater |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farmer |
| Township / Ward | School District 67 Buck Creek |
| Est. Birth Year | ~1886 |
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 Jack | Age | Birth yr |
|---|---|---|---|---|
| Regina Smith | Daughter | — | 4 | ~1936 |
| Vival Smith | Daughter | — | 12 | ~1928 |
| Hazel Smith | Daughter | — | 8 | ~1932 |
| Jack Smith | Head | — | 54 | ~1886 |
| Alfred Smith | Son | — | 9 | ~1931 |
| Dale Smith | Son | — | 6 | ~1934 |
| Lee Smith | Son | — | 16 | ~1924 |
| Van Smith | Son | — | 2 | ~1938 |
| Harley Smith | Son | — | 13 | ~1927 |
| Marie Smith | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Stillwater, Montana
Head, age 44
Stillwater, Montana · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Jack L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 24 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Stillwater-County, Montana
Head, age 54
Stillwater-County, Montana · implied b. ~1886 — 10 household members
| Surname | Smith |
| Given Name | Jack L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | School District 67, Buck Creek |
| 1935 Residence (County) | Stillwater |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Jack Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Jack Smith
Head · 1940 · age 54 · b. ~1886 · 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 — Stillwater-County, Montana
Open full size
1940 US Federal Census — Stillwater-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02232-00218)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Selma Knipfer|Knitpfer | 57 | Head | Farmer | Missouri |
| 2 | David E. Fuller | 55 | Laborer | Laborer | Iowa |
| 3 | Kiefer Fisher | 33 | Head | Stationer | Iowa |
| 4 | Lulu C. Fisher | 35 | Wife | — | Iowa |
| 5 | Patricia A. Fisher | 7 | Daughter | — | Montana |
| 6 | Matt Patrick | 70 | Head | Farmer | Yugoslavia |
| 7 | Mary Patrick | 54 | Wife | — | Slovakia |
| 8 | Pauline Patrick | 22 | Daughter | Teacher | Montana |
| 9 | Son Patrick | None | M | Farming | — |
| 10 | Marvin Thompson | 32 | Head | Farmer | Iowa |
| 11 | Oma Thompson | 33 | Wife | — | Missouri |
| 12 | Eugene Thompson | 11 | Son | — | Montana |
| 13 | Wayne Thompson | 8 | Son | — | Montana |
| 14 | Clarice Thompson | 6 | Daughter | — | Montana |
| 15 | Jack L. Smith THIS PERSON | 54 | Head | Farmer | Missouri |
| 16 | Marie Smith | 36 | Wife | — | Montana |
| 17 | Lee Smith | 16 | Son | — | Montana |
| 18 | Harley Smith | 13 | Son | — | Montana |
| 19 | Vival D. Smith | 12 | Daughter | — | Montana |
| 20 | Alfred Smith | 9 | Son | — | Montana |
| 21 | Hazel Smith | 8 | Daughter | — | Montana |
| 22 | Dale Smith | 6 | Son | — | Montana |
| 23 | Regina Smith | 4 | Daughter | — | Montana |
| 24 | Van Smith | 2 | Son | — | Montana |
| 25 | Melville Poland | 53 | Head | Farmer | Kansas |
| 26 | Minnie Poland | 53 | Wife | — | Missouri |
| 27 | Fabian Heineman | 23 | Laborer | Laborer | North Dakota |
| 28 | Frank Van Campen | 31 | Head | Farmer | Iowa |
| 29 | Ruby Van Campen | 25 | Wife | — | Montana |
| 30 | Marlene Van Campen | 3 | Daughter | — | Montana |
| 31 | Francis Van Campen | 2 | Daughter | — | Montana |
| 32 | Thomas Houghton | 25 | Head | Farmer | Montana |
| 33 | Lena Houghton | 27 | Wife | — | Montana |
| 34 | Roberta C. Houghton | 3 | Daughter | — | Montana |
| 35 | John T. Houghton | 1 | Son | — | Montana |
| 36 | King Darrach | 31 | Head | Farmer | Iowa |
| 37 | Mildred Darrach | 27 | Wife | — | Iowa |
| 38 | Louise Darrach | 11 | Daughter | — | Montana |
| 39 | Evelyn Darrach | 7 | Daughter | — | Montana |
| 40 | George Darrach | 2 | Son | — | Montana |
Related Census Records
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)