CO
Carl Olson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cavalier, North Dakota
Our Model Tree links this Carl Olson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Cavalier, North Dakota (XGBoost, ~Confirmed), with identified parents Sigvart & Edvard — first a head (b.~1896), then head of a 4-person household.
Age 34
b. ~1896
Male
Head
Born: North Dakota
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cavalier, North Dakota |
| Surname | Olson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farmer |
| Township / Ward | Alma Township T 160 R 58 |
| Est. Birth Year | ~1896 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Hulda Olson | Other | — | 27 | ~1903 |
| Helga Olson | Daughter | — | 7 | ~1923 |
| Carl Olson | Head | — | 34 | ~1896 |
| Stanley Olson | Son | — | 6 | ~1924 |
Census Appearances
1900
Cavalier, North …
Son, age 4
Cavalier, North Dakota · implied b. ~1896 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Carl A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Birth Month | June |
| Birth Year | 1896 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1910
Cavalier, North …
Son, age 15
Cavalier, North Dakota · implied b. ~1895 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Carl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1920
Cavalier, North …
Son, age 23
Cavalier, North Dakota · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Carl A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farm Labor |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cavalier, North …
Head, age 34
Cavalier, North Dakota · implied b. ~1896 — 4 household members
| Surname | Olson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cavalier-County, North …
Head, age 41
Cavalier-County, North Dakota · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Clarence A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | West Hope Twp |
| 1935 Residence (County) | LaMoure |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Carl Olson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sigvart Olsen (~0.92 confidence) and father Edvard Olson (~0.92 confidence) and father Sigvart Olson (~0.92 confidence) and mother Maria Olson (~0.92 confidence) and mother Marie Olsen (~0.92 confidence) and mother Marie Olson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sigvart Olsen
b. ~1857
Source father
● Household
· direct · ~0.92
Father
Edvard Olson
b. ~1858
Source father
● Household
· direct · ~0.92
Father
Sigvart Olson
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Maria Olson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Marie Olsen
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Marie Olson
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Olson
Head · 1930 · age 34 · b. ~1896 · North Dakota
★ You are viewing this record
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
49 people indexed on this census page (ia:1930:15thcensus1734unit:0007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Henry Lundeberg | 44 | Head | Farmer | North Dakota |
| 52 | Hazel Lundeberg | 39 | Wife-H | — | North Dakota |
| 53 | Cecil Lundeberg | 16 | Son | — | North Dakota |
| 54 | Arnold Lundeberg | 14 | Son | — | North Dakota |
| 55 | Kenneth Lundeberg | 12 | Son | — | North Dakota |
| 56 | Evelyn Lundeberg | 10 | Daughter | — | North Dakota |
| 57 | Vivian Lundeberg | 7 | Daughter | — | North Dakota |
| 58 | Alice Lundeberg | 5 | Daughter | — | North Dakota |
| 59 | Eileen Lundeberg | 3 | Daughter | — | North Dakota |
| 60 | Marvin Lundeberg | 1 | Son | — | North Dakota |
| 61 | Carl Olson THIS PERSON | 34 | Head | Farmer | North Dakota |
| 62 | Hulda Olson | 27 | Wife-H | — | North Dakota |
| 63 | Helga Olson | 7 | Daughter | — | North Dakota |
| 64 | Stanley Olson | 6 | Son | — | North Dakota |
| 65 | Ludvig Marker | 28 | Head | Farmer | North Dakota |
| 66 | Mary Marker | 22 | Wife-H | — | North Dakota |
| 67 | Lorraine Marker | 3 | Daughter | — | North Dakota |
| 68 | Alice Marker | 1 | Daughter | — | North Dakota |
| 69 | Ole Rygg | 66 | Head-H | — | Norway |
| 70 | Palmer Rygg | 37 | Son | Farm Laborer | North Dakota |
| 71 | Soren Rygg | 29 | Son | Farm Laborer | North Dakota |
| 72 | Leonar Rygg | 27 | Son | Farm Laborer | North Dakota |
| 73 | James Benson | 61 | Head | Farmer | Canada-English |
| 74 | Maggie Benson | 55 | Wife-H | — | Canada-English |
| 75 | Gladys Benson | 18 | Daughter | — | North Dakota |
| 76 | Carlie Biton | 61 | Head-H | Farmer | Norway |
| 77 | Emily Biton | 34 | Daughter | — | North Dakota |
| 78 | Arthur Biton | 22 | Son | Farm Laborer | North Dakota |
| 79 | Gabriel T. Mattson | 45 | Nephew | Farm Laborer | Colorado |
| 80 | John Strand | 20 | Servant | Farm Laborer | Minnesota |
| 81 | John Berger | 35 | Head | Farmer | North Dakota |
| 82 | Lena Berger | 35 | Wife-H | — | North Dakota |
| 83 | Arnold Mosby | 17 | Step-son | — | North Dakota |
| 84 | Edgar Mosby | 15 | Step-son | — | North Dakota |
| 85 | Alice M. Mosby | 13 | Step-daughter | — | North Dakota |
| 86 | William Mosby | 11 | Step-son | — | Minnesota |
| 87 | Ole Hauger | 55 | Head | Farmer | Norway |
| 88 | Margaret Hauger | 50 | Wife-H | — | Iceland |
| 89 | Joseph Hauger | 29 | Son | Farm Laborer | North Dakota |
| 90 | Theodore Hauger | 18 | Son | Farm Laborer | North Dakota |
| 91 | Olga Hauger | 15 | Boarder | — | North Dakota |
| 92 | Louis H. Delvo | 29 | Head | Farmer | North Dakota |
| 93 | Lucille Delvo | 32 | Wife-H | — | North Dakota |
| 94 | Harold Delvo | 9 | Son | — | North Dakota |
| 95 | Leonard Delvo | 8 | Son | — | North Dakota |
| 96 | Helen Delvo | 6 | Daughter | — | North Dakota |
| 97 | Nila Delvo | 4 | Daughter | — | North Dakota |
| 98 | Gertrude Delvo | 2 | Daughter | — | North Dakota |
| 99 | Martin O. Delvo | 73 | Father | — | Norway |
Related Census Records
Pedigree Summary
Carl
Gen 1 · 6 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)