MN
Mary Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rosebud-County, Montana
Our Model Tree links this Mary Nelson across the 1920, 1930 and 1940 US Censuses in Rosebud-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 3-person household.
Age 54
b. ~1886
Female
Spouse
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rosebud-County, Montana |
| Surname | Nelson |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | School District 24 Trail Creek |
| 1935 Residence (County) | Rosebud |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | School District 24 Trail Creek |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jesse Nelson | Head | — | 56 | ~1884 |
| Ralph Nelson | Son | — | 12 | ~1928 |
| Mary Nelson | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Rosebud, Montana
Spouse, age 34
Rosebud, Montana · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Montana |
| Father's Birthplace | Maine |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Rosebud, Montana
Other, age 44
Rosebud, Montana · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Montana |
| Naturalization Status | Naturalized |
| Age at First Marriage | 18 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Rosebud-County, Montana
Spouse, age 54
Rosebud-County, Montana · implied b. ~1886 — 3 household members
| Surname | Nelson |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | School District 24 Trail Creek |
| 1935 Residence (County) | Rosebud |
| Highest Grade | 7 |
| 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 Mary Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Nelson
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 — Rosebud-County, Montana
Open full size
1940 US Federal Census — Rosebud-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02228-01066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse D. Nelson | 56 | Head | Farmer | Kansas |
| 2 | Mary E. Nelson THIS PERSON | 54 | Wife | — | Montana |
| 3 | Ralph G. Nelson | 12 | Son | — | Montana |
| 4 | Hallyon A. Thompson | 70 | Head | Farmer | South Dakota |
| 5 | Arthur B. Wood | 71 | Head | Farmer | Iowa |
| 6 | Carl D. Billin | 50 | Head | Farmer | Nebraska |
| 7 | John (At) Billin | 21 | Son | Laborer | Montana |
| 8 | Mary (At) Billin | 19 | Daughter | Laborer | Montana |
| 9 | William Billin | 17 | Son | Laborer | Montana |
| 10 | Frank R. Tires | 61 | Head | Farmer | Illinois |
| 11 | Mary Tires | 60 | Wife | — | Illinois |
| 12 | Richard Bender | 23 | Hired man | Farm Labor | Illinois |
| 13 | Leila Miller | 20 | Hired girl | Servant | South Dakota |
| 14 | Arthur Kimball | 56 | Hired man | Farm Labor | Ohio |
| 15 | Charles S. Deter | 71 | Head | Farmer | Indiana |
| 16 | George M. Huston | 72 | Head | Farmer | Illinois |
| 17 | Margaret F. Huston | 67 | Wife | — | Illinois |
| 18 | Raymond Huston | 37 | Son | Farm Laborer | Illinois |
| 19 | Benj. F. Dowlin | 46 | Head | Rancher | Montana |
| 20 | Mary Genie Dowlin | 20 | Daughter | — | Montana |
| 21 | Francis Patricia Dowlin | 18 | Daughter | — | Montana |
| 22 | Carl Holland | 35 | Hired man | Ranch Hand | Oklahoma |
| 23 | James A. Pinkerton | 67 | Head | Farmer | Missouri |
| 24 | Elizabeth H. Pinkerton | 56 | Wife | — | Missouri |
| 25 | Tebla (At) Pinkerton | 18 | Daughter | — | Montana |
| 26 | William E. (At) Pinkerton | 10 | Son | — | Montana |
| 27 | William A. Decker | 52 | Head | Rancher | Kentucky |
| 28 | Nanna A. Decker | 50 | Wife | — | Kentucky |
| 29 | Ralph Herald | 58 | Head | Rancher | Nebraska |
| 30 | Mary Herald | 58 | Wife | — | Wisconsin |
| 31 | Floyd Herald | 63 | Head | Farm Laborer | Michigan |
| 32 | James H. Hays | 54 | Head | Farmer | Missouri |
| 33 | Thula Hays | 51 | Wife | — | Missouri |
| 34 | Ruby Hays | 26 | Daughter | — | Montana |
| 35 | James Hays | 23 | Son | Farm Laborer | Montana |
| 36 | Terry (At) Hays | 20 | Son | Farm Laborer | Montana |
| 37 | Winton (At) Hays | 19 | Son | Farm Laborer | Montana |
| 38 | Keith Hays | 17 | Son | Farm Laborer | Montana |
| 39 | Henry Hays | 16 | Son | — | Montana |
| 40 | Margaret Hays | 13 | 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)