TJ
Thomas Johnston — 1940 US Census Record
Model Tree available1940 United States Federal Census · Deer-Lodge-County, Montana
Our Model Tree links this Thomas Johnston across the 1920, 1930 and 1940 US Censuses in Deer-Lodge-County, Montana (XGBoost, ~Confirmed), with identified parents Henry & Doris — first a head (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Deer-Lodge-County, Montana |
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Reduction Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1454 |
| Highest Grade | No 8 |
| 1935 Residence | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Chauffeur |
| Township / Ward | Anaconda City |
| Est. Birth Year | ~1899 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Johnston | Son | — | 19 | ~1921 |
| Therese Johnston | Daughter | — | 13 | ~1927 |
| Margaret Johnston | Spouse | — | 36 | ~1904 |
| Thomas Johnston | Head | — | 41 | ~1899 |
Census Appearances
1920
Deer Lodge, …
Son, age 21
Deer Lodge, Montana · implied b. ~1899 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | England |
| Mother's Birthplace | Scotland |
| Occupation | Chauffeur |
| Industry | Copper Smelter |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Deer Lodge, …
Head, age 31
Deer Lodge, Montana · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | Scotland |
| Occupation | Locomotive Engineer |
| Industry | Smelter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10.00 |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Deer-Lodge-County, Montana
Head, age 41
Deer-Lodge-County, Montana · implied b. ~1899 — 4 household members
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Occupation | Chauffeur |
| Industry | Reduction Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1454 |
| Highest Grade | No 8 |
| 1935 Residence | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Thomas Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Johnston (~0.92 confidence) and mother Doris Johnston (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Johnston
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Doris Johnston
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Johnston
Head · 1940 · age 41 · b. ~1899 · Montana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Deer-Lodge-County, Montana
Open full size
1940 US Federal Census — Deer-Lodge-County, Montana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02217-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest Gueniat | 9 | Son | — | Montana |
| 2 | John Bokovoy | 62 | Head | Janitor | Jugoslavia |
| 3 | Mary Bokovoy | 50 | Wife | — | Jugoslavia |
| 4 | Milton Bokovoy | 21 | Son | — | Montana |
| 5 | Angela Bokovoy | 18 | Daughter | — | Montana |
| 6 | Joe Sr. Rabissonniere | 76 | Head | Watchman | French Canada |
| 7 | Joe Jr. Rabissonniere | 37 | Son | Laborer | Montana |
| 8 | Emery Rabissonniere | 43 | Son | Laborer | Montana |
| 9 | Joe Kershul | 49 | Head | Smelterman | Italy |
| 10 | Josephine Kershul | 47 | Wife | — | Italy |
| 11 | Charles Kershul | 17 | Son | — | Montana |
| 12 | Urban Kershul | 14 | Son | — | Montana |
| 13 | Theodore Kuberick | 49 | Head | Proprietor | Jugoslavia |
| 14 | Helen M. Kuberick | 18 | Daughter | — | Montana |
| 15 | Nora D. Kuberick | 16 | Daughter | — | Montana |
| 16 | Steven J. Kuberick | 11 | Son | — | Montana |
| 18 | Raymond Hanson | 30 | Head | Carpenter | North Dakota |
| 19 | Mildred Hanson | 30 | Wife | — | Colorado |
| 20 | Betty Ray Hanson | 6 | Daughter | — | Colorado |
| 21 | Gust Peterson | 64 | Head | Laborer Smelter | Sweden |
| 22 | Anna Peterson | 64 | Wife | — | Sweden |
| 23 | Lloyd Peterson | 39 | Son | Operator | Illinois |
| 24 | Raymond Peterson | 34 | Son | Concentrating | North Dakota |
| 25 | Gunnar Peterson | 25 | Son | Clerk | North Dakota |
| 26 | Ann Peterson | 5 | Daughter | — | Montana |
| 27 | Jack Soda | 44 | Head | Mechanic | Colorado |
| 28 | Ruth Soda | 38 | Wife | — | Minnesota |
| 29 | Adolph Vindenes | 57 | Head | Carpenter | Michigan |
| 30 | Inga Vindenes | 55 | Wife | — | Norway |
| 31 | Maynard Vindenes | 27 | Son | Laborer Reverberatory | North Dakota |
| 32 | Ethel Hoffine | 25 | Daughter | Proprietor | North Dakota |
| 33 | Laverne Hoffine | 1 | Daughter | — | Montana |
| 34 | Thomas Johnston THIS PERSON | 41 | Head | Chauffeur | Montana |
| 35 | Margaret Johnston | 36 | Wife | — | Montana |
| 36 | Thomas J. Johnston | 19 | Son | Laborer Mill | Montana |
| 37 | Therese C. Johnston | 13 | Daughter | — | Montana |
| 38 | Barbara Laughlin | 51 | Head | — | Garden, Mich. |
| 39 | Bartley J. Laughlin | 31 | Son | Helper Watchman | Montana |
| 40 | Darby J. Laughlin | 24 | Son | Helper Foundry | Montana |
Pedigree Summary
Thomas
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)