MA
Mary Armstrong — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pembina-County, North Dakota
Our Model Tree links this Mary Armstrong across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Pembina-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 3-person household.
Age 71
b. ~1869
Female
Head
Born: Scotland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Pembina-County, North Dakota |
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Beaulieu Township |
| 1935 Residence (County) | Pembina |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Beaulieu Township |
| Est. Birth Year | ~1869 |
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 |
|---|---|---|---|---|
| Kate Armstrong | Daughter | — | 50 | ~1890 |
| Mary Armstrong | Head | — | 71 | ~1869 |
| James Armstrong | Son | — | 34 | ~1906 |
Census Appearances
1900
Pembina, North …
Spouse, age 31
Pembina, North Dakota · implied b. ~1869 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Scotland |
| Birth Month | Mar |
| Birth Year | 1869 |
| Year of Immigration | 1889 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1910
Pembina, North …
Spouse, age 41
Pembina, North Dakota · implied b. ~1869 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Scotland |
| Years Married | 20 |
| Children Born | 6 |
| Children Living | 6 |
| Year of Immigration | 1887 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
Pembina, North …
Spouse, age 50
Pembina, North Dakota · implied b. ~1870 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1891 |
| Birthplace (normalized) | scotland |
1930
Pembina, North …
Head, age 61
Pembina, North Dakota · implied b. ~1869 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | O |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Pembina-County, North …
Head, age 71
Pembina-County, North Dakota · implied b. ~1869 — 3 household members
| Surname | Armstrong |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Beaulieu Township |
| 1935 Residence (County) | Pembina |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Armstrong across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Armstrong
Head · 1940 · age 71 · b. ~1869 · North Dakota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pembina-County, North Dakota
Open full size
1940 US Federal Census — Pembina-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03009-00061)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Isabel Schrader | 31 | Daughter | — | North Dakota |
| 42 | Mary Armstrong THIS PERSON | 71 | Head | — | Scotland |
| 43 | James A. Armstrong | 34 | Son | Farming | North Dakota |
| 44 | Kate Armstrong | 50 | Daughter | — | North Dakota |
| 45 | Herman Hosey | 34 | Head | Farming | North Dakota |
| 46 | Daisy Hosey | 29 | Wife | — | North Dakota |
| 47 | Levy Hosey | 39 | Brother | Farming | North Dakota |
| 48 | Janice Hosey | 1 | Daughter | — | North Dakota |
| 49 | Victor A. Haff | 33 | Head | Farming | North Dakota |
| 50 | Dorothy E. Haff | 25 | Wife | — | North Dakota |
| 51 | Marlene E. Haff | 3 | Daughter | — | North Dakota |
| 52 | Elmer E. Beaudoin | 25 | Head | Farming | North Dakota |
| 53 | Selina Beaudoin | 27 | Wife | — | North Dakota |
| 54 | Doran Beaudoin | 5 | Son | — | North Dakota |
| 55 | Daryl Beaudoin | 1 | Son | — | North Dakota |
| 56 | Ella Brown | 55 | Lodger | Teacher | North Dakota |
| 57 | Fred Carignan | 41 | Head | Laborer | North Dakota |
| 58 | Freda Carignan | 37 | Wife | — | North Dakota |
| 59 | Lucy Carignan | 14 | Daughter | — | North Dakota |
| 60 | Jean Carignan | 8 | Daughter | — | North Dakota |
| 61 | James T. Hunter | 69 | Head | — | Canada English |
| 62 | Lawrence Goulet | 28 | Head | Laborer | Canada French |
| 63 | Agnes H. Goulet | 19 | Wife | — | North Dakota |
| 64 | Eugene L. Goulet | 1 | Son | — | North Dakota |
| 65 | Oscar T. Rutherford | 50 | Head | Laborer | North Dakota |
| 66 | Mary Rutherford | 56 | Wife | — | North Dakota |
| 67 | Joseph R. Goulet | 25 | Head | Laborer | Canada French |
| 68 | Orella Goulet | 21 | Wife | — | North Dakota |
| 69 | Leona M. Goulet | 3 | Daughter | — | North Dakota |
| 70 | Louis E. Goulet | 2 | Daughter | — | North Dakota |
| 71 | Louis A. Goulet | 37 | Head | Laborer | North Dakota |
| 72 | Margaret Goulet | 24 | Wife | — | Canada French |
| 73 | Laura Goulet | 14 | Daughter | — | North Dakota |
| 74 | Louis A. Goulet | 10 | Son | — | North Dakota |
| 75 | Paul L. Goulet | 6 | Son | — | North Dakota |
| 76 | Richard R. Goulet | 2 | Son | — | North Dakota |
| 77 | Paul, Sr. Goulet | 34 | Head | Laborer | North Dakota |
| 78 | Mary Goulet | 29 | Wife | — | North Dakota |
| 79 | Mary O. Goulet | 10 | Daughter | — | North Dakota |
| 80 | David J. Goulet | 7 | Son | — | 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)