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Mary Bentley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Silver-Bow-County, Montana
Our Model Tree links this Mary Bentley across the 1920, 1930 and 1940 US Censuses in Silver-Bow-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 3-person household.
Age 72
b. ~1868
Female
Head
Born: Finland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Silver-Bow-County, Montana |
| Surname | Bentley |
| Given Name | Mary K. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Butte city |
| 1935 Residence (County) | Silver Bow |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Butte City |
| Est. Birth Year | ~1868 |
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 |
|---|---|---|---|---|
| Mabel Bentley | Daughter | — | 43 | ~1897 |
| Mary Bentley | Head | — | 72 | ~1868 |
| Alice Bentley | Daughter | — | 30 | ~1910 |
Census Appearances
1920
Silver Bow, …
Head, age 52
Silver Bow, Montana · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bentley |
| Given Name | Mary K. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | R |
| Birth Country | Finland |
| Year of Naturalization | 1895 |
| Birthplace (normalized) | finland |
1930
Silver Bow, …
Head, age 62
Silver Bow, Montana · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bentley |
| Given Name | Mary R. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 24 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Silver-Bow-County, Montana
Head, age 72
Silver-Bow-County, Montana · implied b. ~1868 — 3 household members
| Surname | Bentley |
| Given Name | Mary K. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Butte city |
| 1935 Residence (County) | Silver Bow |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Bentley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Bentley
Head · 1940 · age 72 · b. ~1868 · 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 — Silver-Bow-County, Montana
Open full size
1940 US Federal Census — Silver-Bow-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02230-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alex S. Christie | 79 | head | Jeweler | Scotland |
| 42 | Gladys C. Parker | 39 | daughter | Librarian | Kansas |
| 43 | Gladys Christie | 22 | granddaughter | Librarian | Montana |
| 44 | — | None | — | — | — |
| 45 | Sidney H. Hoar | 54 | head | — | Montana |
| 46 | Jennie Hoar | 54 | wife | — | Montana |
| 47 | — | None | — | — | — |
| 48 | Edward Mondlock | 49 | head | Carpenter | Montana |
| 49 | Helen A. Mondlock | 45 | wife | — | Montana |
| 50 | Mary Lois Mondlock | 13 | daughter | — | Montana |
| 51 | Edward Jr. Mondlock | 11 | son | — | Montana |
| 52 | Josephine Segille | 43 | head | Cash. | Montana |
| 53 | William Segille | 6 | son | — | Montana |
| 54 | Rosalie Segille | 4 | daughter | — | Montana |
| 55 | Lawrence Mcneil | 21 | son | — | Montana |
| 56 | Eva Mae Wilson | 12 | daughter | — | Montana |
| 57 | Eva Jones | 66 | mother | — | Iowa |
| 58 | Frank X. Schilling | 42 | head | Salesman | Indiana |
| 59 | Ramona Schilling | 39 | wife | — | Montana |
| 60 | John F. Schilling | 14 | son | — | Montana |
| 61 | Betty Marie Schilling | 11 | daughter | — | Montana |
| 62 | Mary K. Bentley THIS PERSON | 72 | head | — | Finland |
| 63 | Mabel A. Bentley | 43 | daughter | Secretary | Montana |
| 64 | Alice A. Bentley | 30 | daughter | — | Montana |
| 65 | Richard Green | 60 | head | Watchman | England |
| 66 | Milerna Green | 65 | sister in law | — | England |
| 67 | Nora Pryor | 57 | head | — | Nevada |
| 68 | Philip Pryor | 31 | son | Bookkeeper | Montana |
| 69 | Harold W. Clausen | 57 | head | Keeping Engineer | Wisconsin |
| 70 | Lucy Clausen | 57 | wife | — | Missouri |
| 71 | James Clausen | 13 | son | — | Tennessee |
| 72 | James T. Rowe | 40 | head | Clerk | England |
| 73 | Gladys Rowe | 31 | wife | — | Montana |
| 74 | James T. Jr. Rowe | 2 | son | — | Montana |
| 75 | Louise Susan Rowe | 0 | daughter | — | Montana |
| 76 | Edgar G. Nankervis | 57 | head | Office Clerk | England |
| 77 | Sarah A. Nankervis | 64 | wife | — | England |
| 78 | Marion Nankervis | 24 | daughter | Teacher | Montana |
| 79 | Stenographer Nankervis | 24 | daughter | Stenographer | Montana |
| 80 | Geraldine Riley | 34 | head | — | 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)