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William Swanson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Swanson across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Swanson |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Midlothian Village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Insurance Salesman |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 3600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Insurance Salesman |
| Township / Ward | Midlothian Village |
| Est. Birth Year | ~1906 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Albert Swanson | Son | — | 5 | ~1935 |
| Gordon Swanson | Son | — | 3 | ~1937 |
| Shirley Swanson | Daughter | — | 9 | ~1931 |
| William Swanson | Head | — | 34 | ~1906 |
| Ronald Swanson | Son | — | 7 | ~1933 |
| Iona Swanson | Spouse | — | 31 | ~1909 |
| William Swanson | Son | — | 11 | ~1929 |
Census Appearances
1930
Cook, Illinois
Head, age 24
Cook, Illinois · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Ticket Auditor |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 34
Cook-County, Illinois · implied b. ~1906 — 7 household members
| Surname | Swanson |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Midlothian Village |
| 1935 Residence (County) | Cook |
| Occupation | Insurance Salesman |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 3600 |
| Highest Grade | H-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 William Swanson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Swanson
Head · 1940 · age 34 · b. ~1906 · 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
40 people indexed on this census page (nara:1940:m-t0627-00775-00438)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Tomlinson William E Tomlinson | 18 | Son | Dorrery | Indiana |
| 2 | Richard T Tomlinson | 16 | Son | Gas Station Attendant | Indiana |
| 3 | Bryce F Tomlinson | 15 | Son | — | Indiana |
| 4 | Dorothy M Tomlinson | 12 | Daughter | — | Indiana |
| 5 | Donald E Tomlinson | 9 | Son | — | Illinois |
| 6 | James E Tomlinson | 6 | Son | — | Illinois |
| 7 | Jacky G Tomlinson | 5 | Son | — | Illinois |
| 8 | Shirley A Tomlinson | 2 | Daughter | — | Illinois |
| 9 | Alfred Jeske | 24 | Head | W.P.A. Timekeeper | Illinois |
| 10 | Catherine Jeske | 25 | Wife | — | Illinois |
| 11 | Alfred Jr. Jeske | 4 | Son | — | Illinois |
| 12 | Arthur Rolhs | 46 | Head | Meter Supervisor | Germany |
| 13 | Helen B Rolhs | 42 | Wife | — | Illinois |
| 14 | William J Bradley | 49 | Head | Truck Driver | Pennsylvania |
| 15 | Elizabeth Bradley | 51 | Wife | — | Pennsylvania |
| 16 | Margaret Bradley | 14 | Daughter | — | Illinois |
| 17 | Hiram I Boode | 39 | Head | Truck Driver | Illinois |
| 18 | Josephine Boode | 30 | Wife | — | Illinois |
| 19 | Winifred Boode | 16 | Daughter | — | Illinois |
| 20 | Lorraine Boode | 15 | Daughter | — | Illinois |
| 21 | Frances Boode | 12 | Daughter | — | Illinois |
| 22 | Norma Boode | 12 | Daughter | — | Illinois |
| 23 | Joseph Boode | 10 | Son | — | Illinois |
| 24 | Josephine Boode | 6 | Daughter | — | Illinois |
| 25 | John Boode | 3 | Son | — | Illinois |
| 26 | Mary Louise Boode | 1 | Daughter | — | Illinois |
| 27 | John W Tomlinson | 49 | Head | Truck Driver | Indiana |
| 28 | Gertrude Tomlinson | 48 | Wife | — | Illinois |
| 29 | — | None | — | — | — |
| 30 | James Gault | 61 | Head | Paint Stockkeeper | Scotland |
| 31 | Margaret Gault | 61 | Wife | — | Scotland |
| 32 | Jack W Gault | 22 | Son | — | Illinois |
| 33 | William L Swanson THIS PERSON | 34 | Head | Insurance Salesman | Illinois |
| 34 | Iona P Swanson | 31 | Wife | — | Illinois |
| 35 | William Jr Swanson | 11 | Son | — | Illinois |
| 36 | Shirley Swanson | 9 | Daughter | — | Texas |
| 37 | Ronald Swanson | 7 | Son | — | Illinois |
| 38 | Albert Swanson | 5 | Son | — | Illinois |
| 39 | Gordon Swanson | 3 | Son | — | Illinois |
| 40 | Leora Hedrix | 57 | Head | Bookkeeper | Michigan |
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)