JC
John Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Itasca-County, Minnesota
Our Model Tree links this John Carlson across the 1920, 1930 and 1940 US Censuses in Itasca-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Male
Head
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Itasca-County, Minnesota |
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Nashwauk Village |
| 1935 Residence (County) | Itasca |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Motorman milkman |
| Industry | Iron ore mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 454 |
| Highest Grade | No H1 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Motorman Milkman |
| Township / Ward | Nashwauk Village |
| Est. Birth Year | ~1887 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elaine Carlson | Daughter | — | 13 | ~1927 |
| Leona Carlson | Daughter | — | 21 | ~1919 |
| Linda Carlson | Daughter | — | 16 | ~1924 |
| John Carlson | Head | — | 53 | ~1887 |
| Leonard Carlson | Son | — | 18 | ~1922 |
| Alma Carlson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Crow Wing, …
Head, age 33
Crow Wing, Minnesota · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Year of Naturalization | R |
| Birthplace (normalized) | finland |
1930
Itasca, Minnesota
Head, age 43
Itasca, Minnesota · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 30 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Washing plant |
| Industry | Iron mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Itasca-County, Minnesota
Head, age 53
Itasca-County, Minnesota · implied b. ~1887 — 6 household members
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Nashwauk Village |
| 1935 Residence (County) | Itasca |
| Naturalization Status | Naturalized |
| Occupation | Motorman milkman |
| Industry | Iron ore mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 454 |
| Highest Grade | No H1 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Carlson
Head · 1940 · age 53 · b. ~1887 · Minnesota
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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 — Itasca-County, Minnesota
Open full size
1940 US Federal Census — Itasca-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01928-00770)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosemary Oleson | 13 | Daughter | — | Minnesota |
| 2 | Paul Modin | 37 | Head | Electrician | Minnesota |
| 3 | Emile Modin | 29 | Wife | — | Minnesota |
| 4 | William Hill | 46 | Head | Foreman | Finland |
| 5 | Anna Hill | 34 | Wife | — | Finland |
| 6 | Lillian Hill | 12 | Daughter | — | Minnesota |
| 7 | Lawrence Erickson | 48 | Head | Manager | Wisconsin |
| 8 | Helen Erickson | 47 | Wife | — | Wisconsin |
| 9 | Anton Jr. Trebar | 37 | Head | Underground Motorman | Minnesota |
| 10 | Mae Trebar | 37 | Wife | — | Wisconsin |
| 11 | Paul Trebar | 5 | Son | — | Minnesota |
| 12 | Alan Trebar | 2 | Son | — | Minnesota |
| 13 | George Galbraith | 60 | Head | Minister | Minnesota |
| 14 | Ellen Galbraith | 57 | Wife | — | Minnesota |
| 15 | Ernest V. Galbraith | 27 | Son | Teacher | Minnesota |
| 16 | Alice Galbraith | 77 | Sister | — | New York |
| 17 | John Paques | 40 | Head | Tractor Operator | Minnesota |
| 18 | Ethel Paques | 34 | Wife | — | Minnesota |
| 19 | Arthur Hendrickson | 33 | Head | Repairman | Minnesota |
| 20 | Aileen Hendrickson | 33 | Wife | — | Wisconsin |
| 21 | Charles Olson | 51 | Head | Locomotive Engineer | Sweden |
| 22 | Ina Olson | 43 | Wife | — | Finland |
| 23 | Wallace Olson | 18 | Son | — | Minnesota |
| 24 | Albert Rossi | 38 | Head | Locomotive Brakeman | Minnesota |
| 25 | Ruth Rossi | 28 | Wife | — | Minnesota |
| 26 | Albert Jr. Rossi | 5 | Son | — | Minnesota |
| 27 | Charles Rossi | 3 | Son | — | Minnesota |
| 28 | Frank R. Rossi | 3 | Son | — | Minnesota |
| 29 | Tony Rossi | 28 | Brother | Common Laborer | Minnesota |
| 30 | John Carlson THIS PERSON | 53 | Head | Motorman Milkman | Finland |
| 31 | Alma Carlson | 50 | Wife | — | Finland |
| 32 | Leona Carlson | 21 | Daughter | Clerk | Minnesota |
| 33 | Leonard Carlson | 18 | Son | — | Minnesota |
| 34 | Linda Carlson | 16 | Daughter | — | Minnesota |
| 35 | Elaine Carlson | 13 | Daughter | — | Minnesota |
| 36 | Martin Williams | 42 | Head | Ore Sampler | Minnesota |
| 37 | Orlando Williams | 29 | Wife | — | Minnesota |
| 38 | Alice J. Williams | 7 | Daughter | — | Minnesota |
| 39 | Albert S. Hagen | 51 | Head | Locomotive Engineer | Minnesota |
| 40 | Marie A. Hagen | 45 | Wife | — | Wisconsin |
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)