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Carl Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carter-County, Montana
Our Model Tree links this Carl Carlson across the 1920, 1930 and 1940 US Censuses in Carter-County, Montana (XGBoost, ~Confirmed), with identified parents Mary — first a son (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carter-County, Montana |
| Surname | Carlson |
| Given Name | Carl J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | School District 21 |
| 1935 Residence (County) | Carter |
| Additional Details | |
| Occupation | Ranch Hand |
| Industry | Stock Ranch |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 300 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Ranch Hand |
| Township / Ward | School District 21 |
| Est. Birth Year | ~1909 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Mary Carlson | Head | — | 54 | ~1886 |
| Ray Carlson | Son | — | 21 | ~1919 |
| Frank Carlson | Son | — | 26 | ~1914 |
| Floyd Carlson | Son | — | 23 | ~1917 |
| Carl Carlson | Son | — | 31 | ~1909 |
Census Appearances
1920
Carter, Montana
Son, age 11
Carter, Montana · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Carl H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Montana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Carter, Montana
Son, age 21
Carter, Montana · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Carl H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Montana |
| Occupation | Ranching |
| Industry | at home |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Carter-County, Montana
Son, age 31
Carter-County, Montana · implied b. ~1909 — 5 household members
| Surname | Carlson |
| Given Name | Carl J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | School District 21 |
| 1935 Residence (County) | Carter |
| Occupation | Ranch Hand |
| Industry | Stock Ranch |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 300 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Carlson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Carlson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Carlson
Son · 1940 · age 31 · b. ~1909 · Montana
★ You are viewing this record
Sibling
Ray Carlson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Carlson
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Carlson
Sibling · 1940 · age 23
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
1940 US Federal Census — Carter-County, Montana
Open full size
1940 US Federal Census — Carter-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02213-00590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Meigen | 27 | Wife | — | South Dakota |
| 2 | Bruce Meigen | 3 | Son | — | Montana |
| 3 | Earl Charles Lincecum | 40 | Head | Hired Man | Illinois |
| 4 | Wilma Lincecum | 28 | Wife | Teacher | Montana |
| 5 | Raymond Teigen | 27 | Head | Rancher | Montana |
| 6 | Ruth Teigen | 26 | Wife | — | South Dakota |
| 7 | James Raymond Teigen | 2 | Son | — | South Dakota |
| 8 | Barbara Jean Teigen | 0 | Daughter | — | South Dakota |
| 9 | Oliver Teigen | 41 | Head | Rancher | Montana |
| 10 | Madeline G. Teigen | 32 | Wife | — | South Dakota |
| 11 | John Oliver Teigen | 9 | Son | — | South Dakota |
| 12 | Harlie Lee Teigen | 4 | Son | — | South Dakota |
| 13 | Albert L. Offerdahl | 59 | Head | Rancher | South Dakota |
| 14 | Ellen Offerdahl | 51 | Wife | — | Iowa |
| 15 | Mary M. Carlson | 54 | Head | — | Montana |
| 16 | Carl J. Carlson THIS PERSON | 31 | Son | Ranch Hand | Montana |
| 17 | Frank Robert Carlson | 26 | Son | Ranch Hand | Montana |
| 18 | Floyd Carlson | 23 | Son | Ranch Hand | Montana |
| 19 | Ray Carlson | 21 | Son | Ranch Hand | Montana |
| 20 | Gust A. Offerdahl | 60 | Head | Rancher | South Dakota |
| 21 | Nels A. Offerdahl | 64 | Head | Rancher | South Dakota |
| 22 | Martin Offerdahl | 53 | Head | Rancher | South Dakota |
| 23 | Walter Iverson | 57 | Head | Rancher | Wisconsin |
| 24 | Elizabeth Iverson | 51 | Wife | — | Iowa |
| 25 | Otto Iverson | 59 | Head | Rancher | Wisconsin |
| 26 | Liza Iverson | 47 | Wife | — | Montana |
| 27 | Walter Iverson | 21 | Son | Ranch Hand | Montana |
| 28 | Lara Iverson | 18 | Daughter | Waitress | Montana |
| 29 | Henry Yelverton | 52 | Head | Rancher | Iowa |
| 30 | Ruth Eleanor Yelverton | 47 | Wife | — | Wisconsin |
| 31 | Ole Dyrby | 63 | Head | Rancher | Norway |
| 32 | Mary Dyrby | 66 | Wife | — | Iowa |
| 33 | Bennie Dyrby | 33 | Son | Rancher | South Dakota |
| 34 | Orville Dyrby | 29 | Son | Rancher | South Dakota |
| 35 | Clifford Dyrby | 25 | Son | Rancher | South Dakota |
| 36 | Erwin Dyrby | 21 | Son | Rancher | Montana |
| 37 | Peter H. Bonfield | 57 | Head | Rancher | South Dakota |
| 38 | Myrtle C. Bonfield | 52 | Wife | — | Colorado |
| 39 | Richard E. Bonfield | 34 | Son | Hired Man | Montana |
| 40 | Pearl M. Bonfield | 18 | Daughter | — | Montana |
Pedigree Summary
Carl + 3 siblings
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)