RS
Robert Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Swanson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Oscar & Oscar — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Swanson |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Mail clerk |
| Industry | Mail Order House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 850 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Mail Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Oscar Swanson | Head | — | 64 | ~1876 |
| Frank Swanson | Son | — | 20 | ~1920 |
| Martha Swanson | Spouse | — | 59 | ~1881 |
| Robert Swanson | Son | — | 23 | ~1917 |
| Raymond Swanson | Son | — | 15 | ~1925 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 23
Cook-County, Illinois · implied b. ~1917 — 5 household members
| Surname | Swanson |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Mail clerk |
| Industry | Mail Order House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 850 |
| Highest Grade | H-2 |
| 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 Robert Swanson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Swanson (~0.92 confidence) and father Oscar Swanson (~0.92 confidence) and mother Anita Swanson (~0.92 confidence) and mother Charlotte Swanson (~0.92 confidence) and mother Martha Swanson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Swanson
b. ~1898
Source father
● Household
· direct · ~0.92
Father
Oscar Swanson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Anita Swanson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Charlotte Swanson
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Martha Swanson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Swanson
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Frank Swanson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Swanson
Sibling · 1940 · age 15
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 — 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-t0627-00937-00797)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Volvia | 31 | Head | Repair Man | Michigan |
| 2 | Florence Volvia | 30 | Wife | Grocery Clerk | Illinois |
| 3 | Betty Volvia | 11 | daughter | — | Illinois |
| 4 | Mary Lou Volvia | 9 | daughter | — | Illinois |
| 5 | Charles Strezo | 26 | Head | Cashier | Illinois |
| 6 | Margie Strezo | 27 | Wife | Encounter | Illinois |
| 7 | Leslie Curnow | 26 | Head | Printer | Illinois |
| 8 | Lorraine Curnow | 21 | Wife | Stenographer | Iowa |
| 9 | Angelo Curatolo | 28 | Head | Repair Man | Italy |
| 10 | Josephine Curatolo | 20 | Wife | Saleslady | Illinois |
| 11 | Howard Beck | 54 | Head | Bartender | Indiana |
| 12 | May Beck | 54 | Wife | Cook | Illinois |
| 13 | Edward Nelson | 23 | Head | Mail Clerk | Illinois |
| 14 | Jean Nelson | 22 | Wife | Sailgirl | Illinois |
| 15 | Carl J. Adams | 60 | Head | Manager | Michigan |
| 16 | Gertrude Adams | 58 | Wife | — | Germany |
| 17 | Walter Fillonoff | 39 | Head | Assistant Manager | Illinois |
| 18 | Bernice Fillonoff | 35 | Wife | — | Illinois |
| 19 | Donn Fillonoff | 14 | son | — | Illinois |
| 20 | Vendell Fillonoff | 14 | daughter | — | Illinois |
| 21 | Mardene Fillonoff | 6 | daughter | — | Illinois |
| 22 | Gweneth Fillonoff | 6 | daughter | — | Illinois |
| 23 | Franklin Martin | 75 | Head | — | Maryland |
| 24 | Leroy Martin | 45 | son | Bank Clerk | Illinois |
| 25 | John Larson | 44 | Head | Carpenter | Sweden |
| 26 | Ella Larson | 44 | Wife | Maid | Sweden |
| 27 | Raymond Larson | 16 | son | Salesman | Illinois |
| 28 | Donald Larson | 15 | son | — | Illinois |
| 29 | Herbert Johnson | 35 | Roomer | Rigger | Sweden |
| 30 | Oscar Swanson | 64 | Head | Counter | Illinois |
| 31 | Martha Swanson | 59 | Wife | Maid | Illinois |
| 32 | Robert Swanson THIS PERSON | 23 | son | Mail Clerk | Illinois |
| 33 | Frank Swanson | 20 | son | Truck Driver | Illinois |
| 34 | Raymond Swanson | 15 | son | — | Illinois |
| 35 | John Nelson | 71 | Head | — | Sweden |
| 36 | Ella Nelson | 63 | Wife | — | Sweden |
| 37 | Nels Gorgani | 63 | Roomer | Janitor | Sweden |
| 38 | William Raffly | 51 | Head | Janitor | Turkey |
| 39 | Lucy Raffly | 42 | Wife | — | Turkey |
| 40 | Rose Raffly | 15 | daughter | — | Illinois |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 5 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)