JT
Julia Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Deer-Lodge-County, Montana
Our Model Tree links this Julia Thompson across the 1920, 1930 and 1940 US Censuses in Deer-Lodge-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Deer-Lodge-County, Montana |
| Surname | Thompson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Anaconda |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Julia | Age | Birth yr |
|---|---|---|---|---|
| Joseph Thompson | Son | — | 19 | ~1921 |
| Julia Thompson | Spouse | — | 54 | ~1886 |
| William Thompson | Head | — | 68 | ~1872 |
| Ellen Thompson | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Deer Lodge, …
Spouse, age 33
Deer Lodge, Montana · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Deer Lodge, …
Spouse, age 44
Deer Lodge, Montana · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 25 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Deer-Lodge-County, Montana
Spouse, age 54
Deer-Lodge-County, Montana · implied b. ~1886 — 4 household members
| Surname | Thompson |
| Given Name | Julia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 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 Julia Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julia Thompson
Spouse · 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 — 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-t0627-02217-00719)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Proulx | 51 | Head | Laborer - Zinc | Canada French |
| 42 | Mary J. Proulx | 56 | Wife | — | Minnesota |
| 43 | Harold Mitchell | 25 | Head | Laborer - Copper | Montana |
| 44 | Lucille Mitchell | 24 | Wife | — | Montana |
| 45 | Sandra L. Mitchell | 3 | Daughter | — | Montana |
| 46 | William J. Mitchell | 1 | Son | — | Montana |
| 47 | Frank Fornelli | 50 | Head | Laborer - Surface | Italy |
| 48 | Barbara Fornelli | 30 | Wife | — | Montana |
| 49 | Elva M. Fornelli | 11 | Daughter | — | Montana |
| 50 | Norman Fornelli | 8 | Daughter | — | Montana |
| 51 | Barbara Fornelli | 6 | Daughter | — | Montana |
| 52 | Mary Ann Fornelli | 4 | Daughter | — | Montana |
| 53 | Charles Olson | 81 | Head | Janitor | Sweden |
| 54 | Reaper R. Olson | 80 | Wife | — | Sweden |
| 55 | Elmer Appleby | 40 | Head | Truck Driver | Iowa |
| 56 | Violet Appleby | 29 | Wife | — | Montana |
| 57 | Joyce Appleby | 11 | Daughter | — | Oregon |
| 58 | Darlene Appleby | 3 | Daughter | — | Montana |
| 59 | Philip Gallagher | 49 | Head | Utility Man | Northern Ireland |
| 60 | Margaret Gallagher | 49 | Wife | — | Northern Ireland |
| 61 | Kathleen Gallagher | 23 | Daughter | Teacher | Montana |
| 62 | Edward Gallagher | 12 | Son | — | Montana |
| 63 | Barney Marrow | 69 | Lodger | — | Northern Ireland |
| 64 | William J. Thompson | 68 | Head | Purchasing Dept. | Michigan |
| 65 | Julia Thompson THIS PERSON | 54 | Wife | — | Missouri |
| 66 | Ellen M. Thompson | 23 | Daughter | — | Montana |
| 67 | Joseph B. Thompson | 19 | Son | Salesman | Montana |
| 68 | Dewey Todorovich | 52 | Head | Hammer Brick | Jugo-Slavia |
| 69 | Antoinette Todorovich | 41 | Wife | — | Montana |
| 70 | George Todorovich | 19 | Son | — | Montana |
| 71 | Robert Todorovich | 16 | Son | — | Montana |
| 72 | Thomas Todorovich | 14 | Son | — | Montana |
| 73 | Jean Todorovich | 9 | Daughter | — | Montana |
| 74 | Thelma Todorovich | 5 | Daughter | — | Montana |
| 75 | Edward C. Johnston | 34 | Head | Painter | Montana |
| 76 | Ruth Johnston | 31 | Wife | — | England |
| 77 | Edward G. Johnston | 8 | Son | — | Montana |
| 78 | Joe Katanic | 46 | Head | Switchman | Jugo-Slavia |
| 79 | Hedge Johnson | 38 | Head | Conductor | 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)