RC
Robert Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Robert Carlson across the 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | R |
| Additional Details | |
| Occupation | 40 |
| Industry | Cutter |
| Class of Worker | Blue Bell Overall Factory |
| Highest Grade | 8 |
| 1935 Residence | Warren |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | 40 |
| Township / Ward | Cedar Township |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Carlson | Daughter | — | 12 | ~1928 |
| Chester Carlson | Head | — | 43 | ~1897 |
| Raymond Carlson | Son | — | 15 | ~1925 |
| May Carlson | Spouse | — | 42 | ~1898 |
| John Carlson | Son | — | 22 | ~1918 |
| Lois Carlson | Daughter | — | 18 | ~1922 |
| Robert Carlson | Son | — | 20 | ~1920 |
Census Appearances
1930
Knox, Illinois
Son, age 10
Knox, Illinois · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 20
Knox-County, Illinois · implied b. ~1920 — 7 household members
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | R |
| Occupation | 40 |
| Industry | Cutter |
| Class of Worker | Blue Bell Overall Factory |
| Highest Grade | 8 |
| 1935 Residence | Warren |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Carlson
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Raymond Carlson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Carlson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Carlson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Carlson
Sibling · 1940 · age 12
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 — 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-t0627-00826-00107)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dora Whitney | 5 | Daughter | — | Illinois |
| 2 | Stanley Whitney | 3 | Son | — | Illinois |
| 3 | Gail Whitney | 1 | Son | — | Illinois |
| 4 | John Pauleyne | 81 | Head | Farmer | Maryland |
| 5 | Jennie Pauleyne | 74 | Wife | — | Illinois |
| 6 | Ralph Niles | 45 | Head | Farmer | Illinois |
| 7 | Mildred Niles | 32 | Wife | — | Illinois |
| 8 | Donald Niles | 3 | Son | — | Illinois |
| 9 | Helen Garrett | 36 | Head | — | Illinois |
| 10 | Robert Garrett | 16 | Nephew | — | Illinois |
| 11 | Harvey Hunter | 43 | Head | 60 | Illinois |
| 12 | Jessie Hunter | 41 | Wife | — | Missouri |
| 13 | Della Hunter | 18 | Daughter | — | Missouri |
| 14 | Twila Hunter | 16 | Daughter | — | Missouri |
| 15 | William Hunter | 13 | Son | — | Missouri |
| 16 | William Hunter | 13 | Son | — | Missouri |
| 17 | Hubert Hunter | 10 | Son | — | Missouri |
| 18 | Harold Stinson | 36 | Head | 40 | Illinois |
| 19 | Ethel Stinson | 36 | Wife | — | Illinois |
| 20 | Robert Stinson | 13 | Son | — | Illinois |
| 21 | Betty Jane Stinson | 10 | Daughter | — | Illinois |
| 22 | Jacqueline Stinson | 8 | Daughter | — | Illinois |
| 23 | Dorothy Stinson | 4 | Daughter | — | Illinois |
| 24 | Elmer Mckeever | 40 | Head | 40 | Illinois |
| 25 | Harvey Mckeever | 16 | Son | 40 | Illinois |
| 26 | Leona Cooper | 32 | Daughter | — | Illinois |
| 27 | Carl Cooper | 38 | Son-in-law | 40 | Illinois |
| 28 | Imani Griffith | 10 | Grandson | — | Indiana |
| 29 | Marie Griffith | 8 | Granddaughter | — | Indiana |
| 30 | Clinton Meadows | 40 | Head | Farmer | Illinois |
| 31 | Violet Meadows | 41 | Wife | — | Illinois |
| 32 | Lyla Moore | 27 | Hired help | — | Illinois |
| 33 | Ralph Meadows | 54 | Brother | Farmer | Illinois |
| 34 | Chester Carlson | 43 | Head | 60 | Illinois |
| 35 | May Carlson | 42 | Wife | — | Illinois |
| 36 | John Carlson | 22 | Son | 40 | Illinois |
| 37 | Robert Carlson THIS PERSON | 20 | Son | 40 | Illinois |
| 38 | Lois Carlson | 18 | Daughter | — | Illinois |
| 39 | Raymond Carlson | 15 | Son | — | Illinois |
| 40 | Dorothy Carlson | 12 | Daughter | — | Illinois |
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)