JC
John Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this John Carlson across the 1920, 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 4-person household.
Age 61
b. ~1879
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Carlson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Torning Township |
| 1935 Residence (County) | Ward |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | Torning Township |
| Est. Birth Year | ~1879 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nanna Carlson | Daughter | — | 22 | ~1918 |
| John Carlson | Head | — | 61 | ~1879 |
| Oliver Carlson | Son | — | 14 | ~1926 |
| Arthur Carlson | Son | — | 12 | ~1928 |
Census Appearances
1920
Ward, North …
Head, age 41
Ward, North Dakota · implied b. ~1879 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1892 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Ward, North …
Head, age 51
Ward, North Dakota · implied b. ~1879 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Grain Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Ward-County, North …
Head, age 61
Ward-County, North Dakota · implied b. ~1879 — 4 household members
| Surname | Carlson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Torning Township |
| 1935 Residence (County) | Ward |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Carlson
Head · 1940 · age 61 · b. ~1879 · North Dakota
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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 — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-01056)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Ness | 51 | Head | Farmer | North Dakota |
| 2 | Gladys O. Ness | 34 | Wife | — | North Dakota |
| 3 | Mavis Anna Ness | 10 | Daughter | — | North Dakota |
| 4 | Doris Elaine Ness | 8 | Daughter | — | North Dakota |
| 5 | Glenny D. Ness | 8 | Daughter | — | North Dakota |
| 6 | Glenn D. Ness | 6 | Son | — | North Dakota |
| 7 | Alvilla Mae Ness | 4 | Daughter | — | North Dakota |
| 8 | Simon Ness | 56 | Boarder | Farmer | Norway |
| 9 | Anton Peterson | 57 | Head | Farmer | Norway |
| 10 | Agnes O. Peterson | 42 | Wife | — | Norway |
| 11 | Alvin Peterson | 18 | Son | Farmer | North Dakota |
| 12 | Albin Peterson | 18 | Son | Farmer | North Dakota |
| 13 | John A. Carlson THIS PERSON | 61 | Head | Farmer | Norway |
| 14 | Nanna J. Carlson | 22 | Daughter | — | North Dakota |
| 15 | Arthur E. Carlson | 12 | Son | Farmer | North Dakota |
| 16 | Oliver E. Carlson | 14 | Son | — | North Dakota |
| 17 | Joseph A. Carlson | 79 | Head | Farmer | Sweden |
| 18 | Linda K. Carlson | 69 | Wife | — | Sweden |
| 19 | Fred E. Carlson | 34 | Son | Farmer | North Dakota |
| 20 | Peter E. Linquist | 65 | Lodger | Farm Laborer | Sweden |
| 21 | Denis E. Killmer | 62 | Head | Farmer | Minnesota |
| 22 | Emma E. Killmer | 61 | Wife | — | Iowa |
| 23 | Melvin L. Killmer | 30 | Son | Farm Laborer | South Dakota |
| 24 | Vera May Killmer | 21 | Daughter | — | North Dakota |
| 25 | Earl J. Killmer | 19 | Son | Woodsman | North Dakota |
| 26 | Henry F. Louis | 42 | Head | Farmer | Minnesota |
| 27 | Alex Baumgarten | 46 | Head | Farmer | Minnesota |
| 28 | Edna Baumgarten | 31 | Wife | — | Wisconsin |
| 29 | William Baumgarten | 15 | Son | Farm Laborer | Wisconsin |
| 30 | Margie Baumgarten | 14 | Daughter | — | Wisconsin |
| 31 | Robert Baumgarten | 13 | Son | — | Wisconsin |
| 32 | David Baumgarten | 11 | Son | — | North Dakota |
| 33 | Cora Baumgarten | 8 | Daughter | — | North Dakota |
| 34 | Carl Baumgarten | 2 | Son | — | North Dakota |
| 35 | Charlotte Baumgarten | 0 | Daughter | — | North Dakota |
| 36 | Joe E. Gustafson | 61 | Head | Farmer | Sweden |
| 37 | Mary Gustafson | 53 | Wife | — | Minnesota |
| 38 | Amy J. Gustafson | 26 | Daughter | Teacher | North Dakota |
| 39 | Peter Severson | 46 | Head | Farmer | Norway |
| 40 | Otis E. Warwick | 47 | Head | Farmer | Iowa |
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)