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William Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this William Carlson across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 5-person household.
Age 68
b. ~1872
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Joliet Twp. |
| 1935 Residence (County) | Will |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Joliet Twp |
| Est. Birth Year | ~1872 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Carlson | Head | — | 68 | ~1872 |
| Albertina Carlson | Spouse | — | 57 | ~1883 |
| Willard Carlson | Other | — | 33 | ~1907 |
| Virgil Carlson | Son | — | 35 | ~1905 |
| Pearl Carlson | Other | — | 18 | ~1922 |
Census Appearances
1920
Will, Illinois
Head, age 48
Will, Illinois · implied b. ~1872 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Will |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Stone Quarry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Sweden |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | sweden |
1930
Will, Illinois
Head, age 57
Will, Illinois · implied b. ~1873 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | William M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 32 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Steam Quarry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Radio Set | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Will-County, Illinois
Head, age 68
Will-County, Illinois · implied b. ~1872 — 5 household members
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Joliet Twp. |
| 1935 Residence (County) | Will |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 68 · b. ~1872 · 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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00909-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary D. Agazzi | 45 | wife | — | Italy |
| 42 | Erwin Wilhelm | 26 | son | Stenographer | Illinois |
| 43 | George Wilhelm | 24 | son | Laborer | Iowa |
| 44 | Fred Wilhelm | 21 | son | Laborer | Iowa |
| 45 | Ruth Wilhelm | 17 | dau | — | Iowa |
| 46 | Louise Wilhelm | 15 | dau | — | Iowa |
| 47 | Robert Wilhelm | 13 | son | — | Iowa |
| 48 | Madeline Wilhelm | 11 | dau | — | Illinois |
| 49 | John Wilhelm | 4 | son | — | Illinois |
| 50 | Fred S. Vesch | 60 | head | Watchman | Illinois |
| 51 | Della G. Vesch | 56 | wife | — | Illinois |
| 52 | Reed Martha J. Vesch | 24 | dau | — | Missouri |
| 53 | Andrew J. Vesch | 31 | son-in-law | Auto Mechanic | Illinois |
| 54 | Louis Faro | 42 | head | Laborer | Italy |
| 55 | Mary Faro | 42 | wife | — | Italy |
| 56 | Rose Mary Faro | 13 | dau | — | Illinois |
| 57 | Bernadine Faro | 10 | dau | — | Illinois |
| 58 | Louis Jr. Faro | 3 | son | — | Illinois |
| 59 | Louis Derocco | 42 | lodger | Laborer | Italy |
| 60 | Wayne Ungicher | 21 | head | Owner-Manager | Illinois |
| 61 | Monnie P. Ungicher | 24 | wife | — | Illinois |
| 62 | William Ungicher | 3 | son | — | Illinois |
| 63 | Judith Ungicher | 1 | dau | — | Illinois |
| 65 | John Knowles | 54 | head | Laborer | Illinois |
| 66 | Clarice P. Knowles | 50 | wife | — | Illinois |
| 67 | Allen Knowles | 20 | son | Machinist | Illinois |
| 68 | Sigfrid Palmer | 47 | head | Foreman-Machinist | Illinois |
| 69 | Normie Palmer | 46 | wife | — | Sweden |
| 70 | Raymond Palmer | 15 | son | — | Illinois |
| 71 | Lawrence Palmer | 9 | son | — | Illinois |
| 72 | Manfred Bang | 40 | brother-in-law | Attendant | Sweden |
| 73 | Albert E. Thurner | 50 | head | Machinist | England |
| 74 | Marie Thurner | 46 | wife | — | England |
| 75 | Michael Keith | 71 | brother-in-law | — | England |
| 76 | William Carlson THIS PERSON | 68 | head | — | Sweden |
| 77 | Albertina Carlson | 57 | wife | Cleaning | Sweden |
| 78 | Virgil Carlson | 35 | son | Machinist | Illinois |
| 79 | Pearl Carlson | 18 | dau-in-law | — | Illinois |
| 80 | Willard Carlson | 33 | married son | Lithographer | 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)