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John Robertson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cavalier, North Dakota
Our Model Tree links this John Robertson across the 1910, 1920 and 1930 US Censuses in Cavalier, North Dakota (XGBoost, ~Confirmed), with identified parents Robert & Mary — first a son (b.~1905), then head of a 6-person household.
Age 25
b. ~1905
Male
Son
Born: North Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cavalier, North Dakota |
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Laborer |
| Township / Ward | West Hope Township |
| Est. Birth Year | ~1905 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Susan Robertson | Daughter | — | 21 | ~1909 |
| Christine Robertson | Daughter | — | 27 | ~1903 |
| Robert Robertson | Head | — | 63 | ~1867 |
| Riley Robertson | Son | — | 22 | ~1908 |
| John Robertson | Son | — | 25 | ~1905 |
| Mary Robertson | Spouse | — | 62 | ~1868 |
Census Appearances
1910
Cavalier, North …
Son, age 5
Cavalier, North Dakota · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | John L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Write | No |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1920
Cavalier, North …
Son, age 15
Cavalier, North Dakota · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cavalier, North …
Son, age 25
Cavalier, North Dakota · implied b. ~1905 — 6 household members
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| 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 John Robertson across 3 US Census years (1910, 1920 and 1930) in Cavalier, North Dakota, using XGBoost record linkage. Identified parents: father Robert Robertson (~0.92 confidence) and mother Mary Robertson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Robertson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Mary Robertson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Robertson
Son · 1930 · age 25 · b. ~1905 · North Dakota
★ You are viewing this record
Sibling
Christine Robertson
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Riley Robertson
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Robertson
Sibling · 1930 · age 21
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 — Cavalier, North Dakota
Open full size
1930 US Federal Census — Cavalier, North Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1734unit:0350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lina Foyers | 71 | Mother-in-law | — | Wisconsin |
| 2 | Raymond Ruth | 25 | Head | Farmer | North Dakota |
| 3 | Ida Ruth | 23 | Wife | — | North Dakota |
| 4 | Mrs Grace Ruth | 46 | Mother | — | North Dakota |
| 5 | Jacob S. Carlson | 47 | Head | Farmer | Norway |
| 6 | Julia S. Carlson | 45 | Wife | — | North Dakota |
| 7 | Mrs Annie Torgson | 47 | Mother-in-law | — | Wisconsin |
| 8 | Clarence Torgson | 18 | Brother-in-law | Laborer | North Dakota |
| 9 | Frank Hoppe | 27 | Farm Help | Laborer | North Dakota |
| 10 | Robert Robertson | 63 | Head | Farmer | Scotland |
| 11 | Mary Robertson | 62 | Wife | — | Scotland |
| 12 | Christine Robertson | 27 | Daughter | — | North Dakota |
| 13 | John Robertson THIS PERSON | 25 | Son | Laborer | North Dakota |
| 14 | Riley Robertson | 22 | Son | — | North Dakota |
| 15 | Susan Robertson | 21 | Daughter | — | North Dakota |
| 16 | Ole Stakke | 69 | Head | Farmer | Norway |
| 17 | Mollie Stakke | 52 | Wife | — | Norway |
| 18 | Morris Stakke | 18 | Son | Laborer | North Dakota |
| 19 | Ursilla Stakke | 17 | Daughter | — | North Dakota |
| 20 | Edward Spatte | 45 | Head | Farmer | Minnesota |
| 21 | Justina B. Spatte | 39 | Wife | — | North Dakota |
| 22 | May M. Spatte | 17 | Daughter | — | North Dakota |
| 23 | Hazel L. Spatte | 16 | Daughter | — | North Dakota |
| 24 | Vernon W. Spatte | 9 | Son | — | North Dakota |
| 25 | Loyard L. Spatte | 3 | Son | — | North Dakota |
| 26 | Ernest C. Schneider | 30 | Head | Farmer | North Dakota |
| 27 | Aurora R. Schneider | 25 | Wife | — | North Dakota |
| 28 | Millicent J. Schneider | 3 | Daughter | — | North Dakota |
| 29 | Leslie J. Schneider | 1 | Son | — | North Dakota |
| 30 | Henry W. Hoffarth | 37 | Head | Farmer | North Dakota |
| 31 | Anna M. Hoffarth | 37 | Wife | — | Germany |
| 32 | Romeo F. Hoffarth | 6 | Son | — | North Dakota |
| 33 | Richard Hoffarth | 2 | Daughter | — | North Dakota |
| 34 | Frank P. Kartes | 58 | Head | Farmer | Canada English |
| 35 | Frank W. Kartes | 30 | Son | Laborer | North Dakota |
| 36 | Eva C. Kartes | 22 | Daughter | — | North Dakota |
| 37 | William J. Kartes | 18 | Son | — | Canada English |
| 38 | Albert J. Hoffarth | 26 | Head | Farmer | North Dakota |
| 39 | Agnes M. Hoffarth | 25 | Wife | — | North Dakota |
| 40 | Teresa La Carte | 3 | Adopted Daughter | — | North Dakota |
| 41 | Dennis A. Hoffarth | 66 | Head | Farmer | Canada English |
| 42 | Teresa Hoffarth | 49 | Wife | — | Canada English |
| 43 | Edmond A. Hoffarth | 28 | Son | Laborer | North Dakota |
| 44 | Anthony J. Hoffarth | 24 | Son | Laborer | North Dakota |
| 45 | Lavina M. Hoffarth | 22 | Daughter | — | North Dakota |
| 46 | Otto J. Hoffarth | 18 | Son | Laborer | North Dakota |
| 47 | Michael A. Hoffarth | 15 | Son | — | North Dakota |
| 48 | Frances J. Hoffarth | 13 | Daughter | — | North Dakota |
| 49 | Angeline M. Hoffarth | 9 | Daughter | — | North Dakota |
| 50 | Colette A. Hoffarth | 6 | Daughter | — | North Dakota |
Related Census Records
Pedigree Summary
John + 3 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)