MA
Mary Ames — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dawson-County, Montana
Our Model Tree links this Mary Ames across the 1930 and 1940 US Censuses in Dawson-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Female
Spouse
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dawson-County, Montana |
| Surname | Ames |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Dawson |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Montana |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | School District 70 |
| Est. Birth Year | ~1885 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| E Ames | Head | — | 50 | ~1890 |
| Dorothy Ames | Daughter | — | 19 | ~1921 |
| Edward Ames | Son | — | 23 | ~1917 |
| Mary Ames | Spouse | — | 55 | ~1885 |
| Donald Ames | Son | — | 19 | ~1921 |
| Michael Ames | Son | — | 15 | ~1925 |
Census Appearances
1930
Prairie, Montana
Spouse, age 45
Prairie, Montana · implied b. ~1885 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ames |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 28 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Dawson-County, Montana
Spouse, age 55
Dawson-County, Montana · implied b. ~1885 — 6 household members
| Surname | Ames |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Dawson |
| Highest Grade | Hs 4 |
| 1935 Residence | Montana |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Ames across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Ames
Spouse · 1940 · age 55 · b. ~1885 · 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 — Dawson-County, Montana
Open full size
1940 US Federal Census — Dawson-County, Montana
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-02217-00284)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | E. Howard Ames | 50 | Head | Farmer | Wisconsin |
| 2 | Mary M. Ames THIS PERSON | 55 | Wife | — | South Dakota |
| 3 | Edward L. Ames | 23 | Son | Farm Laborer | Montana |
| 4 | Dorothy R. Ames | 19 | Daughter | — | Wisconsin |
| 5 | Donald L. Ames | 19 | Son | Farm Laborer | Wisconsin |
| 6 | Michael E. Ames | 15 | Son | — | Montana |
| 7 | Felix Anderson | 55 | Head | Farmer | Italy |
| 8 | Mary Anderson | 50 | Wife | — | Italy |
| 9 | John B. Maschera | 60 | Head | Farmer | Italy |
| 10 | Lena Q. Maschera | 58 | Wife | — | Italy |
| 11 | Josephine H. Maschera | 22 | Daughter | — | Montana |
| 12 | George Mcpherson | 23 | Laborer | Farm Laborer | Montana |
| 13 | Joseph Lupo | 63 | Head | Farmer | Italy |
| 14 | Mary Lupo | 64 | Wife | — | Italy |
| 15 | John A. Mitchell | 37 | Head | Farmer | Montana |
| 16 | Drucella R. Mitchell | 22 | Wife | — | Montana |
| 17 | George C. Mitchell | 5 | Son | — | Montana |
| 18 | John A. Jr. Mitchell | 2 | Son | — | Montana |
| 19 | Merline M. Mitchell | 0 | Daughter | — | Montana |
| 20 | Edwin A. Ladwig | 55 | Head | Farmer | Iowa |
| 21 | Ella C. Ladwig | 61 | Sister | — | Iowa |
| 22 | Charles H. Lease | 61 | Head | Farmer | Iowa |
| 23 | Viola A. Lease | 55 | Wife | — | Iowa |
| 24 | Archie Stevenson | 29 | Lodger | Farmer | North Dakota |
| 25 | Clayton Goodchild | 32 | Head | Farmer | Iowa |
| 26 | Katherine Goodchild | 29 | Wife | — | Montana |
| 27 | Harland H. Goodchild | 6 | Son | — | Montana |
| 28 | Elaine M. Goodchild | 4 | Daughter | — | Montana |
| 29 | Katherine F. Goodchild | 2 | Daughter | — | Montana |
| 30 | Elmer H. Lease | 59 | Head | Farmer | Iowa |
| 31 | Elsie C. Lease | 60 | Wife | — | Iowa |
| 32 | Merril M. Stevenson | 27 | Lodger | Farmer | North Dakota |
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)