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John Mcnally — 1940 US Census Record
Model Tree available1940 United States Federal Census · Deer-Lodge-County, Montana
Our Model Tree links this John Mcnally across the 1920, 1930 and 1940 US Censuses in Deer-Lodge-County, Montana (XGBoost, ~Confirmed), with identified parents Miles & Tessa — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Deer-Lodge-County, Montana |
| Surname | McNally |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Anaconda City |
| 1935 Residence (County) | Deer Lodge |
| Additional Details | |
| Occupation | Machinist |
| Industry | Copper Smelter |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Machinist |
| Township / Ward | Anaconda City |
| Est. Birth Year | ~1910 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Mcnally | Spouse | — | 25 | ~1915 |
| Elaine Mcnally | Daughter | — | 1 | ~1939 |
| Robert Mcnally | Son | — | 3 | ~1937 |
| John Mcnally | Head | — | 30 | ~1910 |
Census Appearances
1920
Deer Lodge, …
Son, age 10
Deer Lodge, Montana · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNally |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Deer Lodge, …
Other, age 20
Deer Lodge, Montana · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNally |
| Given Name | John E. |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Deer-Lodge-County, Montana
Head, age 30
Deer-Lodge-County, Montana · implied b. ~1910 — 4 household members
| Surname | McNally |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Anaconda City |
| 1935 Residence (County) | Deer Lodge |
| Occupation | Machinist |
| Industry | Copper Smelter |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 John Mcnally across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Miles Mcnally (~0.92 confidence) and mother Tessa Mcnally (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Miles Mcnally
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Tessa Mcnally
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcnally
Head · 1940 · age 30 · b. ~1910 · 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-t0627-02217-00695)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eleanor Donich | 22 | Wife | — | Montana |
| 42 | Ole Johnson | 53 | Head | Laborer | Norway |
| 43 | Mona Johnson | 40 | Wife | — | Norway |
| 44 | Olga Johnson | 17 | Daughter | — | Norway |
| 45 | Alfred Johnson | 14 | Son | — | Montana |
| 46 | John Khinatson | 75 | Head | — | Norway |
| 47 | Lewis Mertzig | 36 | Head | Operator | Montana |
| 48 | Mary Mertzig | 25 | Wife | — | Montana |
| 49 | Mary Ann Mertzig | 2 | Daughter | — | Montana |
| 51 | Michael Horvath | 52 | Head | Laborer | Hungary |
| 52 | Mary Horvath | 42 | Wife | — | Scotland |
| 53 | James Horvath | 17 | Son | — | Montana |
| 54 | Christine Horvath | 14 | Daughter | — | Montana |
| 55 | Winifred Murphy | 65 | Head | — | N. Ireland |
| 56 | Henry Rustad | 68 | Head | Watchman | Wisconsin |
| 57 | Hazel Rustad | 22 | Daughter | New Worker | N. Dakota |
| 58 | Ervin Rustad | 17 | Son | New Worker | N. Dakota |
| 59 | Ole Gjerde | 37 | Head | Laborer | Norway |
| 60 | Ella Gjerde | 34 | Daughter | — | N. Dakota |
| 61 | George Mertzig | 40 | Head | Chemist | Montana |
| 62 | Christine Mertzig | 40 | Wife | — | Scotland |
| 63 | Frederick Mertzig | 2 | Son | — | Montana |
| 64 | George Maxwell | 36 | Head | Custodian | Scotland |
| 65 | Lucille Maxwell | 32 | Wife | — | Montana |
| 66 | George Maxwell | 7 | Son | — | Montana |
| 67 | Carol Maxwell | 2 | Daughter | — | Montana |
| 68 | Richard Maxwell | 0 | Son | — | Montana |
| 69 | Isabella Maxwell | 66 | Mother | — | Scotland |
| 70 | Peter Furgina | 58 | Head | Laborer | Austria |
| 71 | Anna Furgina | 46 | Wife | — | Pennsylvania |
| 72 | Dorothy Furgina | 20 | Daughter | Secretary | Montana |
| 73 | Ed Lightfoot | 23 | Head | Sampler | Montana |
| 74 | Elynore Lightfoot | 21 | Wife | — | Montana |
| 75 | John Mcnally THIS PERSON | 30 | Head | Machinist | Montana |
| 76 | Mildred Mcnally | 25 | Wife | — | N. Dakota |
| 77 | Robert Mcnally | 3 | Son | — | Montana |
| 78 | Elaine Mcnally | 1 | Daughter | — | Montana |
| 79 | Stanley Anderson | 31 | Head | Sampler | Scotland |
| 80 | Hilda Anderson | 25 | Wife | — | Montana |
Pedigree Summary
John
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)