JM
James Mckay — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Gallatin-County, Montana
Our Model Tree links this James Mckay across the 1930 and 1940 US Censuses in Gallatin-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 6-person household.
Age 54
b. ~1886
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Gallatin-County, Montana |
| Surname | McKay |
| Given Name | James P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bozeman City |
| 1935 Residence (County) | Gallatin |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 566 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Laborer |
| Township / Ward | Bozeman City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Mckay | Head | — | 54 | ~1886 |
| Joseph Mckay | Son | — | 19 | ~1921 |
| Mildred Mckay | Spouse | — | 56 | ~1884 |
| Lillian Mckay | Daughter | — | 17 | ~1923 |
| Edward Mckay | Son | — | 26 | ~1914 |
| Raymond Mckay | Son | — | 24 | ~1916 |
Census Appearances
1930
Gallatin, Montana
Head, age 46
Gallatin, Montana · implied b. ~1884 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKay |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 23 |
| Father's Birthplace | United States |
| Mother's Birthplace | Michigan |
| Occupation | Worker |
| Industry | Seed house |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Gallatin-County, Montana
Head, age 54
Gallatin-County, Montana · implied b. ~1886 — 6 household members
| Surname | McKay |
| Given Name | James P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Bozeman City |
| 1935 Residence (County) | Gallatin |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 566 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 James Mckay across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mckay
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 — Gallatin-County, Montana
Open full size
1940 US Federal Census — Gallatin-County, Montana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02220-00031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gale Tiedema | 53 | Head | Retail Grain Farm | Holland |
| 2 | William W. Nuber | 60 | Head | Landlord | Germany |
| 3 | Elizabeth Nuber | 44 | Wife | Booker | Montana |
| 4 | Helene Story | 25 | Daughter | Clerk | Montana |
| 5 | Norma Nuber | 17 | Daughter | — | Montana |
| 6 | Patricia J. Story | 5 | Granddaughter | — | Montana |
| 7 | Sharon R. Story | 3 | Granddaughter | — | Montana |
| 8 | Charles M. Van Sigman | 54 | Jeweler | Jeweler | Holland |
| 10 | Lillian M. Rosson | 31 | Head | Seed Sorter | Montana |
| 11 | Harold F. Rosson | 10 | Son | — | Montana |
| 12 | Sharon B. Rosson | 8 | Daughter | — | Montana |
| 13 | James P. Mckay THIS PERSON | 54 | Head | Laborer | Michigan |
| 14 | Mildred Mckay | 56 | Wife | — | Michigan |
| 15 | Raymond J. Mckay | 24 | Son | Laborer | Michigan |
| 16 | Edward E. Mckay | 26 | Son | — | Michigan |
| 17 | Lillian V. Mckay | 17 | Daughter | — | Montana |
| 18 | Joseph E. Mckay | 19 | Son | Clerk | Montana |
| 19 | Simon J. Simon | 29 | Head | Farm Labor | Michigan |
| 20 | Velma V. Simon | 24 | Wife | — | Montana |
| 21 | Barbara J. Simon | 3 | Daughter | — | Montana |
| 22 | Joyce A. Simon | 2 | Daughter | — | Montana |
| 23 | Donald E. Simon | 0 | Son | — | Montana |
| 24 | A. H. Lawrence | 28 | Head | Truck Driver | Montana |
| 25 | Edna M. Lawrence | 26 | Wife | — | South Dakota |
| 26 | Deanna L. Lawrence | 2 | Daughter | — | Montana |
| 27 | Connie R. Lawrence | 0 | Daughter | — | Montana |
| 28 | James T. Foster | 52 | Head | Laborer | Missouri |
| 29 | Carrie F. Foster | 60 | Wife | — | Missouri |
| 31 | John B. White | 70 | Head | — | Missouri |
| 32 | Gertrude E. White | 63 | Wife | — | Pennsylvania |
| 33 | Charles D. Berger | 42 | Head | Engineer | Illinois |
| 34 | Ruby A. Berger | 38 | Wife | — | Missouri |
| 35 | Mildred E. Lawrence | 21 | Daughter | Clerk | Montana |
| 36 | Richard A. Lawrence | 2 | Grandson | — | Montana |
| 37 | Samuel E. Turner | 67 | Head | Section Foreman | Missouri |
| 38 | Mary R. Turner | 66 | Wife | — | Missouri |
| 39 | Alice Turner | 13 | Daughter | — | Idaho |
| 40 | Clifford C. Ross | 65 | Head | Laborer | 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)