RC
Robert Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Robert Carlson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Amanda & Amanda — first a head (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Carlson |
| Given Name | Robert W. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | truck driver |
| Industry | wholesale paper co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Truck Driver |
| Township / Ward | Galesburg |
| Est. Birth Year | ~1913 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Alfred Johnson | Other | — | 72 | ~1868 |
| Robert Carlson | Head | — | 27 | ~1913 |
| Robert Carlson | Son | — | 2 | ~1938 |
| Betty Carlson | Daughter | — | 6 | ~1934 |
| Alice Carlson | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Knox, Illinois
Son, age 7
Knox, Illinois · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 17
Knox, Illinois · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Head, age 27
Knox-County, Illinois · implied b. ~1913 — 5 household members
| Surname | Carlson |
| Given Name | Robert W. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Warren |
| Occupation | truck driver |
| Industry | wholesale paper co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H-2 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Robert Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Amanda Carlson (~0.92 confidence) and mother Amanda Carlson (~0.92 confidence) and father Gus Carlson (~0.92 confidence) and father Gust Carlson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Amanda Carlson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Amanda Carlson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Gus Carlson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Gust Carlson
b. ~1882
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Carlson
Head · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00515)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Larry Sipple | 5 | son | — | Illinois |
| 42 | Everett Johnson | 29 | head | Serviceman | Illinois |
| 43 | Audrey G. Johnson | 22 | wife | — | Illinois |
| 44 | Maurice Alters | 24 | brother-in-law | Serviceman | Illinois |
| 45 | Clair D. Carlson | 75 | head | — | Sweden |
| 46 | James Emery | 31 | head | Truck Driver | Illinois |
| 47 | Florence S. Emery | 32 | wife | — | Illinois |
| 48 | John R. Emery | 7 | son | — | Illinois |
| 49 | Donald J. Emery | 6 | son | — | Illinois |
| 50 | William Emery | 4 | son | — | Illinois |
| 51 | Richard Emery | 3 | son | — | Illinois |
| 52 | Joyce A. Emery | 1 | daughter | — | Illinois |
| 53 | Wilbur Wilson | 34 | head | Janitor | Illinois |
| 54 | Zelda Wilson | 31 | wife | — | Pennsylvania |
| 55 | Marlene Wilson | 8 | daughter | — | Illinois |
| 56 | Donald Wilson | 6 | son | — | Illinois |
| 57 | Leona Mackey | 26 | sister-in-law | Switchboard Operator | Illinois |
| 58 | Pearl Donnelly | 43 | head | Machine Operator | Illinois |
| 59 | Dorothy Ballard | 21 | daughter | — | Illinois |
| 60 | Harold Ballard | 3 | grandson | — | Illinois |
| 61 | Robert Ballard | 2 | grandson | — | Illinois |
| 62 | Charles M. Burgland | 68 | head | Operator | Illinois |
| 63 | Effie A. Burgland | 63 | wife | — | Illinois |
| 64 | Clilene Conner | 44 | head | Cook | Illinois |
| 65 | Eloise Conner | 22 | daughter | Bookkeeper | Illinois |
| 66 | Burdette Conner | 16 | son | — | Illinois |
| 67 | Frances Anderson | 45 | head | — | Illinois |
| 68 | John R. Godwin | 40 | head | Salesman | Texas |
| 69 | Rubelle Godwin | 24 | wife | — | North Carolina |
| 70 | W. Bryan Godwin | 38 | brother | Salesman | Texas |
| 71 | Jennie Caldwell | 71 | head | — | Pennsylvania |
| 72 | Eva Depew | 72 | head | — | Illinois |
| 73 | Leroy J. Donaldson | 29 | head | Teacher | Illinois |
| 74 | Clara E. Donaldson | 33 | wife | Teacher | Illinois |
| 75 | Robert W. Carlson THIS PERSON | 27 | head | Truck Driver | Illinois |
| 76 | Alice Carlson | 28 | wife | — | Illinois |
| 77 | Betty J. Carlson | 6 | daughter | — | Illinois |
| 78 | Robert W. Carlson | 2 | son | — | Illinois |
| 79 | Alfred Johnson | 72 | father-in-law | — | Illinois |
| 80 | Cabel Carlson | 32 | head | — | Illinois |
Pedigree Summary
Robert
Gen 1 · 4 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)