WM
William Mcclain — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pondera-County, Montana
Our Model Tree links this William Mcclain across the 1930 and 1940 US Censuses in Pondera-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 6-person household.
Age 50
b. ~1890
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pondera-County, Montana |
| Surname | McClain |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | School District 31, Brownell |
| 1935 Residence (County) | Pondera |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Farmer |
| Township / Ward | School District 31 Brownell |
| Est. Birth Year | ~1890 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Donald Mcclain | Son | — | 5 | ~1935 |
| William Mcclain | Head | — | 50 | ~1890 |
| Esther Mcclain | Spouse | — | 36 | ~1904 |
| Charlotte Mcclain | Daughter | — | 13 | ~1927 |
| Nancy Mcclain | Daughter | — | 3 | ~1937 |
| George Mcclain | Son | — | 14 | ~1926 |
Census Appearances
1930
Pondera, Montana
Head, age 40
Pondera, Montana · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McClain |
| Given Name | William P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 31 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | Wheat Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5 |
| Veteran | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pondera-County, Montana
Head, age 50
Pondera-County, Montana · implied b. ~1890 — 6 household members
| Surname | McClain |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | School District 31, Brownell |
| 1935 Residence (County) | Pondera |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 William Mcclain across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Mcclain
Head · 1940 · age 50 · b. ~1890 · 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 — Pondera-County, Montana
Open full size
1940 US Federal Census — Pondera-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02227-00190)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Willard Asmus | 30 | Head | Farmer | Minnesota |
| 2 | Iva Mae Asmus | 23 | Wife | — | Montana |
| 3 | Ardella Asmus | 3 | Daughter | — | Montana |
| 4 | Charlotte Asmus | 1 | Daughter | — | Montana |
| 5 | Max C. Brownell | 51 | Head | Farmer | New York |
| 6 | Clara G. Brownell | 58 | Wife | — | Connecticut |
| 7 | Alice C. Brownell | 24 | Daughter | — | Montana |
| 8 | William Mcclain THIS PERSON | 50 | Head | Farmer | Washington |
| 9 | Esther Mcclain | 36 | Wife | — | Iowa |
| 10 | George L. Mcclain | 14 | Son | — | Montana |
| 11 | Charlotte Mcclain | 13 | Daughter | — | Montana |
| 12 | Donald Mcclain | 5 | Son | — | Montana |
| 13 | Nancy Mcclain | 3 | Daughter | — | Montana |
| 14 | Patrick B. Mills | 41 | Head | Farmer | Nebraska |
| 15 | Opal Mills | 39 | Wife | — | Nebraska |
| 16 | Bernice Mills | 16 | Daughter | — | Nebraska |
| 17 | Clinton Mills | 9 | Son | — | Montana |
| 18 | Nick Kieft | 57 | Head | Farmer | Holland |
| 19 | Blanche Kieft | 33 | Wife | — | Iowa |
| 20 | Rosetta Kieft | 4 | Daughter | — | Minnesota |
| 21 | Claude Kieft | 2 | Son | — | Montana |
| 22 | Roy Younce | 26 | Employee | Laborer | Kansas |
| 23 | Paul Oertel | 58 | Head | Operator | Germany |
| 24 | Agnes Oertel | 55 | Wife | — | Montana |
| 25 | Edward L. Stokes | 37 | Head | Miner | Canada-English |
| 26 | Katherine Stokes | 32 | Wife | — | Washington |
| 27 | Teddy A. Stokes | 15 | Son | — | Montana |
| 28 | Herbert G. Stokes | 11 | Son | — | Montana |
| 29 | Joyce Stokes | 8 | Daughter | — | Montana |
| 30 | Alfred Gesaford | 43 | Head | Miner | — |
| 31 | Ruth Gesaford | 43 | Wife | — | Kansas |
| 32 | Arthur Vandepas | 18 | Son-in-law | Laborer | Montana |
| 33 | Walter Vandepas | 14 | Son-in-law | — | Montana |
| 34 | Josephine Gesaford | 12 | Daughter | — | Montana |
| 35 | Patty Ruth Gesaford | 9 | Daughter | — | Montana |
| 36 | Beverly Gesaford | 7 | Daughter | — | Montana |
| 37 | Rae Gesaford | 5 | Daughter | — | Montana |
| 38 | Darlene Gesaford | 1 | Daughter | — | Montana |
| 39 | Edward F. Frenick | 28 | Head | Miner | Minnesota |
| 40 | Lina Frenick | 26 | Wife | — | 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)