MR
Mary Robertson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Pembina, North Dakota
Our Model Tree links this Mary Robertson across the 1930 and 1940 US Censuses in Pembina, North Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 4
b. ~1926
Female
Daughter
Born: North Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Pembina, North Dakota |
| Surname | Robertson |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Canada English |
| Mother's Birthplace | North Dakota |
| Additional Details | |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Bathgate Township |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eileen Robertson | Daughter | — | 7 | ~1923 |
| Elizabeth Robertson | Daughter | — | 5 | ~1925 |
| Lois Robertson | Daughter | — | 3 | ~1927 |
| Mary Robertson | Daughter | — | 4 | ~1926 |
| Harold Robertson | Head | — | 44 | ~1886 |
| Ethel Robertson | Other | — | 26 | ~1904 |
| Alice Robertson | Other | — | 76 | ~1854 |
| Laura Robertson | Son | — | 1 | ~1929 |
| William Robertson | Son | — | 8 | ~1922 |
| Laura Robertson | Spouse | — | 31 | ~1899 |
Census Appearances
1930
Pembina, North …
Daughter, age 4
Pembina, North Dakota · implied b. ~1926 — 10 household members
| Surname | Robertson |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Canada English |
| Mother's Birthplace | North Dakota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Pembina-County, North …
Daughter, age 14
Pembina-County, North Dakota · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Bathgate Township |
| 1935 Residence (County) | Pembina |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north 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 Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Robertson
Daughter · 1930 · age 4 · b. ~1926 · North Dakota
★ You are viewing this record
Sibling
Eileen Robertson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Robertson
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Robertson
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Robertson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Robertson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Pembina, North Dakota
Open full size
1930 US Federal Census — Pembina, North Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1740unit:0032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold E Robertson | 44 | Head | Farmer | Canada English |
| 2 | Laura E Robertson | 31 | Wife | — | North Dakota |
| 3 | William A Robertson | 8 | Son | — | North Dakota |
| 4 | Eileen E Robertson | 7 | Daughter | — | North Dakota |
| 5 | Elizabeth Robertson | 5 | Daughter | — | North Dakota |
| 6 | Mary J Robertson THIS PERSON | 4 | Daughter | — | North Dakota |
| 7 | Lois E Robertson | 3 | Daughter | — | North Dakota |
| 8 | Laura M Robertson | 1 | Son | — | North Dakota |
| 9 | Alice J Robertson | 76 | Mother | — | Canada English |
| 10 | Ethel M Robertson | 26 | Sister | Public School | Canada English |
| 11 | Charles Trotter | 63 | Head | Farmer | Massachusetts |
| 12 | Emma Trotter | 22 | Daughter | — | North Dakota |
| 13 | Catherine Trotter | 20 | Daughter | Operator | North Dakota |
| 14 | Alice Trotter | 18 | Daughter | Servant | North Dakota |
| 15 | John Martindale | 42 | Head | Farmer | England |
| 16 | Joseph Martindale | 34 | Head | Farmer | North Dakota |
| 17 | Arthur Austin | 37 | Head | Farmer | Canada English |
| 18 | Florence Austin | 37 | Wife | — | North Dakota |
| 19 | Robert E Austin | 5 | Son | — | North Dakota |
| 20 | William G Austin | 3 | Son | — | North Dakota |
| 21 | John York | 38 | Head | Farmer | North Dakota |
| 22 | Myrtle York | 38 | Wife | — | Iowa |
| 23 | William York | 14 | Son | Laborer | Minnesota |
| 24 | Edward Carlson | 53 | Head | Farmer | Minnesota |
| 25 | Elizabeth Carlson | 76 | Wife | — | Canada English |
| 26 | Martha V Carlson | 19 | Daughter | — | North Dakota |
| 27 | Raymond Carlson | 17 | Son | — | North Dakota |
| 28 | Mary Carlson | 15 | Daughter | — | North Dakota |
| 29 | William H Carlson | 12 | Son | — | North Dakota |
| 30 | William Payne | 38 | Head | Farmer | North Dakota |
| 31 | Alice Payne | 29 | Sister | — | North Dakota |
| 32 | Michael Trotter | 36 | Head | Farmer | North Dakota |
| 33 | Margaret Trotter | 36 | Wife | — | Iowa |
| 34 | Evelyn Trotter | 15 | Daughter | — | North Dakota |
| 35 | Beatrice Trotter | 12 | Daughter | — | North Dakota |
| 36 | Isoline Trotter | 5 | Daughter | — | North Dakota |
| 37 | Jean Trotter | 3 | Daughter | — | North Dakota |
| 38 | Joseph Scholand | 33 | Head | Farmer | Minnesota |
| 39 | Edward P Quigley | 14 | Head | Farmer | Canada English |
| 40 | Mary E Quigley | 27 | Wife | — | Canada English |
| 41 | Charles Quigley | 2 | Son | — | North Dakota |
| 42 | Ariel Cyr | 45 | Head | Farmer | North Dakota |
| 43 | Anton Cyr | 58 | O | Farmer | Norway |
| 44 | Abner Nelson | 53 | O | Farmer | North Dakota |
| 45 | Max Lindenberg | 55 | Head | Farmer | Germany |
| 46 | Bertha Lindenberg | 50 | Wife | — | Germany |
| 47 | Louis Lindenberg | 20 | Son | — | Minnesota |
| 48 | Agnes Lindenberg | 18 | Daughter | — | North Dakota |
| 49 | George Lindenberg | 15 | Son | — | North Dakota |
| 50 | Reinhold Lindenberg | 11 | Son | — | North Dakota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)