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William Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Carlson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 3-person household.
Age 46
b. ~1894
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Machinist |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1894 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Alice Carlson | Spouse | — | 43 | ~1897 |
| William Carlson | Head | — | 46 | ~1894 |
| Laverne Check | Daughter | — | 12 | ~1928 |
Census Appearances
1920
Cook, Illinois
Head, age 26
Cook, Illinois · implied b. ~1894 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 36
Cook, Illinois · implied b. ~1894 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Machinist |
| Industry | Locomotive |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 46
Cook-County, Illinois · implied b. ~1894 — 3 household members
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 William Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Carlson
Head · 1940 · age 46 · b. ~1894 · Illinois
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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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00990-00414)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Penny Jones | 3 | Daughter | — | Illinois |
| 2 | Gustave Randers | 65 | Head | Superintendent | Norway |
| 3 | Marie Randers | 59 | Wife | — | Norway |
| 4 | George Bickel | 55 | Head | Landscaping | Illinois |
| 5 | Louise Bickel | 57 | Wife | — | Illinois |
| 6 | William Bickel | 21 | Son | — | Illinois |
| 7 | Frederick George | 72 | Head | — | Illinois |
| 8 | Louis G. Graf | 48 | Head | Pressman | Illinois |
| 9 | Madeline Graf | 33 | Wife | — | Illinois |
| 10 | Russell Graf | 14 | Son | — | Illinois |
| 12 | Charles Lavine | 62 | Head | Salesman | Germany |
| 13 | Minnie Lavine | 61 | Wife | — | Germany |
| 14 | Louise Lavine | 30 | Daughter | Secretary | Illinois |
| 15 | Norman Stoddard | 22 | Head | Folder | Wisconsin |
| 16 | Eleanor Stoddard | 22 | Wife | — | Illinois |
| 17 | Gary Stoddard | 2 | Son | — | Illinois |
| 18 | Jeanette Stoddard | 1 | Daughter | — | Illinois |
| 19 | George Holmes | 65 | Head | Engineer | Illinois |
| 20 | Olga Holmes | 63 | Wife | — | Germany |
| 21 | Ernest Gruya | 54 | Head | Asst. Operator | Illinois |
| 22 | Carrie Gruya | 45 | Wife | — | Illinois |
| 23 | Robert Gruya | 18 | Son | — | Illinois |
| 24 | Erling Skaare | 37 | Head | Painter | Norway |
| 25 | Helene Skaare | 28 | Wife | — | Norway |
| 26 | Barbara Lee Skaare | 1 | Daughter | — | Illinois |
| 27 | Joseph P. Brzyko | 55 | Head | Fireman | Illinois |
| 28 | Helen Brzyko | 54 | Wife | — | Illinois |
| 29 | Edwin Wm. Brzyko | 26 | Son | Accountant | Illinois |
| 30 | William Carlson THIS PERSON | 46 | Head | Machinist | Illinois |
| 31 | Alice Carlson | 43 | Wife | — | Illinois |
| 32 | Laverne Check | 12 | Daughter | — | Illinois |
| 33 | Albert Coefeld | 59 | Head | Letter Carrier | Germany |
| 34 | Elsie Coefeld | 46 | Wife | — | Illinois |
| 35 | Harry Mccarthy | 24 | Son-in-law | Clerk | Illinois |
| 36 | Leon Lubway | 32 | Head | Plate Maker | Germany |
| 37 | Lyn Lubway | 39 | Wife | — | Illinois |
| 38 | Sandra Lubway | 1 | Daughter | — | Illinois |
| 39 | Frank Oelz | 48 | Head | Inspector | Illinois |
| 40 | Nellie Oelz | 43 | Wife | — | Illinois |
Related Census Records
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)