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Mary Mackey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boundary-County, Idaho
Our Model Tree links this Mary Mackey across the 1930 and 1940 US Censuses in Boundary-County, Idaho (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 7-person household.
Age 46
b. ~1894
Female
Spouse
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Boundary-County, Idaho |
| Surname | Mackey |
| Given Name | Mary I. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Naples Precinct |
| 1935 Residence (County) | Boundary |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | Naples Precinct |
| Est. Birth Year | ~1894 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Clair Mackey | Son | — | 15 | ~1925 |
| Lester Mackey | Son | — | 25 | ~1915 |
| Mary Mackey | Spouse | — | 46 | ~1894 |
| Lois Mackey | Daughter | — | 21 | ~1919 |
| Francis Mackey | Head | — | 46 | ~1894 |
| Charles Mackey | Other | — | 74 | ~1866 |
| Shirley Mackey | Son | — | 17 | ~1923 |
Census Appearances
1930
Boundary, Idaho
Spouse, age 36
Boundary, Idaho · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Idaho |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Boundary-County, Idaho
Spouse, age 46
Boundary-County, Idaho · implied b. ~1894 — 7 household members
| Surname | Mackey |
| Given Name | Mary I. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Naples Precinct |
| 1935 Residence (County) | Boundary |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Mackey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mackey
Spouse · 1940 · age 46 · b. ~1894 · Idaho
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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 — Boundary-County, Idaho
Open full size
1940 US Federal Census — Boundary-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00741-00978)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Purdy | 13 | Daughter | — | Idaho |
| 42 | Edward Hogue | 25 | Head | Section Laborer | Montana |
| 43 | Pearl Hogue | 21 | Wife | — | Idaho |
| 44 | Melvin Hogue | 2 | Son | — | Idaho |
| 45 | Antone W. Miller | 54 | Head | Proprietor | Austria |
| 46 | Eva Miller | 46 | Wife | — | Illinois |
| 47 | Martin Miller | 24 | Son | Steam Locomotive Fireman | Idaho |
| 48 | Clifford Miller | 20 | Son | Section Laborer | Idaho |
| 49 | Margaret Miller | 17 | Daughter | — | Idaho |
| 50 | Lucille Miller | 14 | Daughter | — | Idaho |
| 51 | Dorothy Miller | 11 | Daughter | — | Idaho |
| 52 | William T. Mackey | 49 | Head | Proprietor | Washington |
| 53 | Marie Mackey | 45 | Wife | — | Montana |
| 54 | Lucille Jane Mackey | 18 | Daughter | — | Washington |
| 55 | Billy Gene Mackey | 10 | Son | — | Idaho |
| 56 | Francis L. Mackey | 46 | Head | Proprietor | Montana |
| 57 | Mary I. Mackey THIS PERSON | 46 | Wife | — | Montana |
| 58 | Lester Mackey | 25 | Son | — | Idaho |
| 59 | Lois Mackey | 21 | Daughter | — | Idaho |
| 60 | Shirley Mackey | 17 | Son | — | Washington |
| 61 | Clair Mackey | 15 | Son | — | Idaho |
| 62 | Charles Mackey | 74 | Father | — | Nebraska |
| 63 | Dick Snider | 48 | Head | Steam Engineer | Montana |
| 64 | Pearl Snider | 44 | Wife | — | Minnesota |
| 65 | Jess Jr. Bemis | 12 | Nephew | — | Idaho |
| 66 | Ann Hanson | 52 | Wife | Janitor | Norway |
| 67 | Robert Hanson | 20 | Son | Section Laborer | Idaho |
| 68 | Fred Mortner | 59 | Head | Farmer | Wisconsin |
| 69 | May Mortner | 53 | Wife | — | Iowa |
| 70 | Robert Mortner | 7 | Grand Son | — | Idaho |
| 71 | Walter Ott | 78 | Head | — | Wisconsin |
| 72 | Bertha B. Ott | 55 | Wife | — | Wisconsin |
| 73 | James Leitner | 43 | Head | Laborer | Minnesota |
| 74 | Vivian Leitner | 38 | Wife | — | Montana |
| 75 | Carlyle Leitner | 14 | Son | — | Idaho |
| 76 | Gerald Leitner | 13 | Son | — | Idaho |
| 77 | William Kerstetter | 54 | Head | Instructor | Pennsylvania |
| 78 | Anna Kerstetter | 44 | Wife | — | Colorado |
| 79 | Charles Cowell | 57 | Head | Laborer | Michigan |
| 80 | Hazel Cowell | 47 | Wife | — | Tennessee |
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)