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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.~1905), then head of a 8-person household.
Age 35
b. ~1905
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Swanson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Record Clerk |
| Industry | Police Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Record Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1905 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Shirley Swanson | Daughter | — | 13 | ~1927 |
| William Swanson | Son | — | 15 | ~1925 |
| Robert Swanson | Son | — | 3 | ~1937 |
| Marilyn Swanson | Daughter | — | 11 | ~1929 |
| Barbara Swanson | Daughter | — | 6 | ~1934 |
| Mildred Swanson | Spouse | — | 35 | ~1905 |
| Joanne Swanson | Daughter | — | 8 | ~1932 |
| William Swanson | Head | — | 35 | ~1905 |
Census Appearances
1930
Cook, Illinois
Son, age 25
Cook, Illinois · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swenson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerical |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 35
Cook-County, Illinois · implied b. ~1905 — 8 household members
| Surname | Swanson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Record Clerk |
| Industry | Police Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 8 |
| 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 35 · b. ~1905 · 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-t0627-00977-00275)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Lazarick | 23 | Sister | Egg Breaker | Illinois |
| 2 | William Swanson THIS PERSON | 35 | Head | Record Clerk | Illinois |
| 3 | Mildred Swanson | 35 | Wife | — | Illinois |
| 4 | William H. Swanson | 15 | Son | — | Illinois |
| 5 | Shirley M. Swanson | 13 | Daughter | — | Illinois |
| 6 | Marilyn R. Swanson | 11 | Daughter | — | Illinois |
| 7 | Joanne C. Swanson | 8 | Daughter | — | Illinois |
| 8 | Barbara Swanson | 6 | Daughter | — | Illinois |
| 9 | Robert B. Swanson | 3 | Son | — | Illinois |
| 10 | Adelle Pranpin | Pran Pin | 60 | Head | Craftsman | Louisiana |
| 11 | Marion Pranpin | Pran Pin | 60 | Wife | — | Eire |
| 12 | Edmund Pranpin | Pran Pin | 27 | Son | Delivery Boy | Illinois |
| 13 | Andrew Basista | 60 | Head | — | Poland |
| 14 | Helen Basista | 34 | Daughter | Telephone Operator | Illinois |
| 15 | Walter Basista | 25 | Son | Assembler | Illinois |
| 16 | Brian Clark | 8 | Grandson | — | Illinois |
| 17 | Stanley Bablonski | 57 | Head | Laborer | Poland |
| 18 | Stella Bablonski | 60 | Wife | — | Poland |
| 19 | Lorraine Bablonski | 16 | Daughter | — | Illinois |
| 20 | Walter Atkielski | 30 | Head | Clerk | Poland |
| 21 | Helen Atkielski | 26 | Wife | — | Illinois |
| 22 | Thomas Atkielski | 0 | Son | — | Illinois |
| 23 | Michael Wlodnowski | 57 | Head | Handy Man | Poland |
| 24 | Angeline Wlodnowski | 57 | Wife | — | Poland |
| 25 | Michael Wenc | 29 | Head | Tool Clerk | Illinois |
| 26 | Sofie Wenc | 30 | Wife | — | Illinois |
| 27 | Leonard Wenc | 0 | Son | — | Illinois |
| 28 | Nicholas Sr. Di Rago | 57 | Head | Washer | Italy |
| 29 | Francis Di Rago | 23 | Daughter | Sorter | Illinois |
| 30 | Nicholas Di Rago | 20 | Son | Maker | Illinois |
| 31 | Helen Di Rago | 18 | Daughter | Feeder | Illinois |
| 32 | Leonard Di Rago | 16 | Son | — | Illinois |
| 33 | John Danko | 31 | Head | Machine Operator | Illinois |
| 34 | Josephine Danko | 27 | Wife | — | Illinois |
| 35 | John Danko | 3 | Son | — | Illinois |
| 36 | Florian Danko | 2 | Son | — | Illinois |
| 37 | George Stinker | 36 | Head | Leather Worker | Missouri |
| 38 | Angeline Stinker | 32 | Wife | — | Missouri |
| 39 | Richard Stinker | 13 | Son | — | Missouri |
| 40 | Harriet Alice Wright | 83 | Head | — | Ohio |
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)