JC
John Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this John Carlson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents Adolph & Adolf — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Winnebago twp |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | hired help |
| Industry | farming |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 480 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Hired Help |
| Township / Ward | Winnebago Twp |
| Est. Birth Year | ~1912 |
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 |
|---|---|---|---|---|
| Marian Carlson | Daughter | — | 25 | ~1915 |
| Adolph Carlson | Head | — | 67 | ~1873 |
| John Carlson | Son | — | 28 | ~1912 |
| Hedwig Carlson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Winnebago, Illinois
Son, age 9
Winnebago, Illinois · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Son, age 18
Winnebago, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm Labor |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 28
Winnebago-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Winnebago twp |
| 1935 Residence (County) | Winnebago |
| Occupation | hired help |
| Industry | farming |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 480 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 John Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Carlson (~0.92 confidence) and father Adolf Carlson (~0.92 confidence) and father Adolph Carlson (~0.92 confidence) and mother Hulda Carlson (~0.92 confidence) and mother Hedwig Carlson (~0.92 confidence) and mother Hedwig Carlson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Carlson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Adolf Carlson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Adolph Carlson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Hulda Carlson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Hedwig Carlson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Hedwig Carlson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Carlson
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Marian Carlson
Sibling · 1940 · age 25
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00915-00926)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jean Carlson | 19 | daughter | Stenographer | Illinois |
| 42 | Edward Anderson | 22 | hired hand | Farm Hand | Wisconsin |
| 43 | Wilford Ritzmeyer | 31 | head | Farmer | Illinois |
| 44 | Margaret Ritzmeyer | 25 | wife | — | Illinois |
| 45 | Charles W. Ritzmeyer | 0 | son | — | Illinois |
| 46 | Hubert Johnson | 48 | head | Farmer | Illinois |
| 47 | Esther Johnson | 45 | wife | — | Illinois |
| 48 | Ray Johnson | 8 | son | — | Illinois |
| 49 | Edith Johnson | 6 | daughter | — | Illinois |
| 50 | Eugene Mitchell | 40 | head | Watchman | Illinois |
| 51 | Esther Mitchell | 39 | wife | — | Illinois |
| 52 | James Mitchell | 14 | son | — | Illinois |
| 53 | Harlan Mitchell | 9 | son | — | Illinois |
| 54 | Paul Mitchell | 5 | son | — | Illinois |
| 55 | Minnie Sauberlich | 58 | head | — | Germany |
| 56 | Albert Sauberlich | 19 | son | Janitor | Illinois |
| 57 | Carl Jr. Sauberlich | 18 | son | Hired Hand | Illinois |
| 58 | Viola Sauberlich | 17 | daughter | — | Illinois |
| 59 | Herman Johnson | 41 | head | Farmer | Illinois |
| 60 | Evelyn Johnson | 46 | sister | — | Illinois |
| 61 | Mabel Johnson | 39 | sister | Stenographer | Illinois |
| 62 | Adolph Carlson | 67 | head | Farmer | Sweden |
| 63 | Hedwig Carlson | 52 | wife | — | Sweden |
| 64 | John Carlson THIS PERSON | 28 | son | Hired Help | Illinois |
| 65 | Marian Carlson | 25 | daughter | Clerk | Illinois |
| 66 | Henry F. Swanson | 32 | head | Farmer | Illinois |
| 67 | Angeline Swanson | 27 | wife | — | Wisconsin |
| 68 | Arthur H. Swanson | 9 | son | — | Illinois |
| 69 | Richard L. Swanson | 3 | son | — | Illinois |
| 70 | Darlene J. Swanson | 1 | daughter | — | Illinois |
| 71 | Donald L. Goble | 18 | lodger | Laborer | Wisconsin |
| 72 | Bernard Cook | 47 | head | Weighman | Illinois |
| 73 | Caroline Cook | 45 | wife | — | Illinois |
| 74 | Mary Cook | 18 | daughter | — | Illinois |
| 75 | Frederick Cook | 17 | son | — | Illinois |
| 76 | Adelaide Cook | 14 | daughter | — | Illinois |
| 77 | Pauline Cook | 9 | daughter | — | Illinois |
| 78 | Jean Cook | 7 | daughter | — | Illinois |
| 79 | Donald Cook | 2 | son | — | Illinois |
| 80 | Lester Beuman | 50 | head | Operator | Illinois |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 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)