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John Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Deer-Lodge-County, Montana
Our Model Tree links this John Alexander across the 1910, 1920, 1930 and 1940 US Censuses in Deer-Lodge-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 5-person household.
Age 67
b. ~1873
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Deer-Lodge-County, Montana |
| Surname | Alexander |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Additional Details | |
| Occupation | Accountant |
| Industry | Anaconda Smelter |
| Class of Worker | PW |
| Hours Worked | 51 |
| Income (1939) | 2400 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Accountant |
| Township / Ward | Anaconda |
| Est. Birth Year | ~1873 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Alexander | Head | — | 67 | ~1873 |
| Robert Miller | Other | — | 25 | ~1915 |
| Henry Schwalenbach | Other | — | 23 | ~1917 |
| Jutta Alexander | Son | — | 22 | ~1918 |
| Anna Alexander | Spouse | — | 59 | ~1881 |
Census Appearances
1910
Deer Lodge, …
Head, age 36
Deer Lodge, Montana · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Oregon |
| Years Married | 8 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Bookkeeper |
| Industry | Grocery Store |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1920
Deer Lodge, …
Head, age 48
Deer Lodge, Montana · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Oregon |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Bookkeeper |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Deer Lodge, …
Head, age 56
Deer Lodge, Montana · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Oregon |
| Age at First Marriage | 28 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Auditor |
| Industry | Smelter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Deer-Lodge-County, Montana
Head, age 67
Deer-Lodge-County, Montana · implied b. ~1873 — 5 household members
| Surname | Alexander |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Anaconda |
| 1935 Residence (County) | Deer Lodge |
| Occupation | Accountant |
| Industry | Anaconda Smelter |
| Class of Worker | PW |
| Hours Worked | 51 |
| Income (1939) | 2400 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Alexander across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Alexander
Head · 1940 · age 67 · b. ~1873 · 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-t0627-02217-00582)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maude Smith | 46 | Head | — | Montana |
| 2 | John Smith | 25 | Son | Core Maker | Montana |
| 3 | Hugh Gilchrist | 78 | Lodger | Foreman Carpenter | Iowa |
| 5 | John H. Alexander THIS PERSON | 67 | Head | Accountant | Oregon |
| 6 | Anna Alexander | 59 | Wife | — | Canada |
| 7 | Jutta Alexander | 22 | Son | — | Montana |
| 8 | Robert B. Miller | 25 | Lodger | Chemist | Iowa |
| 9 | Henry Schwalenbach | 23 | Lodger | Metallurgical Engineer | Michigan |
| 10 | John T. Kelly | 28 | Head | Patrolman | Montana |
| 11 | Margaret Kelly | 21 | Wife | — | Montana |
| 12 | Margaret Kelly | 1 | Daughter | — | Montana |
| 13 | J. Higgins Brantz | 67 | Head | Muckcutter | Germany |
| 14 | Aurellia Brantz | 67 | Wife | — | Germany |
| 15 | Daniel Haffey | 58 | Head | Janitor | South Dakota |
| 16 | Mary Haffey | 40 | Wife | — | Montana |
| 17 | Joseph Haffey | 21 | Son | Teamster | Montana |
| 18 | John Haffey | 19 | Son | — | Montana |
| 19 | Margaret Haffey | 16 | Daughter | — | Montana |
| 20 | Stella Haffey | 12 | Daughter | — | Montana |
| 21 | Theresa Haffey | 10 | Daughter | — | Montana |
| 22 | Betty J. Haffey | 9 | Daughter | — | Montana |
| 23 | Norene Haffey | 4 | Daughter | — | Montana |
| 24 | Joseph Francisco | 25 | Head | Clerk | Montana |
| 25 | Eleanor Francisco | 25 | Wife | — | Montana |
| 26 | Sharon Francisco | 0 | Daughter | — | Montana |
| 27 | Duane Morrison | 24 | Head | Assistant Manager | North Dakota |
| 28 | Harold Morrison | 22 | Wife | — | Nebraska |
| 29 | Alfred R. Graesser | 25 | Head | Forester | Nebraska |
| 30 | Winona Graesser | 25 | Wife | — | Montana |
| 31 | Mary Horvath | 64 | Head | — | Germany |
| 32 | Delwin Liddiard | 27 | Head | Sampler | Utah |
| 33 | Lucille Liddiard | 29 | Wife | — | Montana |
| 34 | Beverly Liddiard | 8 | Daughter | — | Utah |
| 35 | Delwin Liddiard | 4 | Son | — | Montana |
| 36 | Burt J. Hogan | 50 | Head | Clerk | Montana |
| 37 | Jennie Hogan | 49 | Wife | — | Minnesota |
| 38 | John Bob Hogan | 22 | Son | — | Montana |
| 39 | Robert Hogan | 19 | Son | Laborer | Montana |
| 40 | Marion Hogan | 17 | Daughter | — | 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)