CS
Carl Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Carl Swanson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Swanson |
| Given Name | Carl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford city |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1910 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Carl Swanson | Son | — | 30 | ~1910 |
| Flora Swanson | Daughter | — | 26 | ~1914 |
| Arvid Swanson | Son | — | 29 | ~1911 |
| Raymond Olsen | Other | — | 38 | ~1902 |
| Alfred Swanson | Head | — | 59 | ~1881 |
| Josephine Johnson | Other | — | 63 | ~1877 |
Census Appearances
1920
Winnebago, Illinois
Son, age 10
Winnebago, Illinois · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Winnebago, Illinois
Son, age 21
Winnebago, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Carver |
| Industry | Furniture Fac |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 30
Winnebago-County, Illinois · implied b. ~1910 — 6 household members
| Surname | Swanson |
| Given Name | Carl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford city |
| 1935 Residence (County) | Winnebago |
| Highest Grade | No 0 |
| 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 Carl Swanson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Swanson (~0.92 confidence) and father John Swanson (~0.92 confidence) and father Alfred Swanson (~0.92 confidence) and mother Anna Swanson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Swanson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Alfred Swanson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Anna Swanson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Swanson
Son · 1940 · age 30 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
Arvid Swanson
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Swanson
Sibling · 1940 · age 26
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00914-00221)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl A. Anderson | 33 | Brother | Veneer Sawyer | Illinois |
| 2 | Clarence R. Anderson | 26 | Brother | Set-Up Man | Illinois |
| 3 | Frank Stenstrom | 23 | Head | Router | Illinois |
| 4 | Eleanor I. Stenstrom | 23 | Wife | Seamstress | Illinois |
| 5 | Jon Guckis | 58 | Head | Belt Sander | Lithuania |
| 6 | Kostania Guckis | 56 | Wife | — | Lithuania |
| 7 | Pete Yanelunas | 26 | Son-in-law | Machinist | Illinois |
| 8 | Virginia Yanelunas | 22 | Daughter | Operator-Cap. | Illinois |
| 9 | Charles Ross | 51 | Head | — | Lithuania |
| 10 | Mary Ross | 43 | Wife | — | England |
| 11 | Carl O. Billstrom | 74 | Head | — | Sweden |
| 12 | Christina B. Billstrom | 75 | Wife | — | Sweden |
| 13 | Rudolph C. Johnson | 43 | Head | Drilling Mach. Op. | Illinois |
| 14 | Clara A. Johnson | 46 | Wife | — | Sweden |
| 15 | Hjalmar Sandstrom | 57 | Head | Double End Tenner | Sweden |
| 16 | Thyra V. Sandstrom | 49 | Wife | Washing | Sweden |
| 17 | Bengt H. Sandstrom | 17 | Son | Helper | Illinois |
| 18 | Arthur G. Kneller | 27 | Head | Tool Maker | Illinois |
| 19 | Dagmar V. Kneller | 25 | Wife | Dish Washer | Illinois |
| 20 | Patricia A. Kneller | 7 | Daughter | — | Illinois |
| 21 | Alfred Swanson | 59 | Head | Finisher | Sweden |
| 22 | Carl A. Swanson THIS PERSON | 30 | Son | — | Illinois |
| 23 | Arvid N. Swanson | 29 | Son | Sticker Hand | Illinois |
| 24 | Flora V. Swanson | 26 | Daughter | Billing Clerk | Illinois |
| 25 | Josephine Johnson | 63 | Sister-in-law | — | Sweden |
| 26 | Raymond Olsen | 38 | Boarder | Wood Carver | Illinois |
| 27 | Charles Bergstrom | 77 | Head | — | Sweden |
| 28 | Elmer Bergstrom | 40 | Son | Manager | Illinois |
| 29 | Robert Bergstrom | 38 | Son | Header | Illinois |
| 30 | Erhard E. Lund | 35 | Head | Sheet Metal Worker | Michigan |
| 31 | Arlene M. Lund | 33 | Wife | — | Michigan |
| 32 | June F. Lund | 13 | Daughter | — | Michigan |
| 33 | Donna G. Lund | 9 | Daughter | — | Illinois |
| 34 | Carl W. Nordstrom | 44 | Head | Millwright | Minnesota |
| 35 | Sybil G. Nordstrom | 38 | Wife | — | Illinois |
| 36 | Mary L. Nordstrom | 5 | Daughter | — | Illinois |
| 37 | Carl A. Svenson | 70 | Head | Tool Room Foreman | Sweden |
| 38 | Agusta Svenson | 65 | Wife | — | Sweden |
| 39 | Julia A. Johnson | 49 | Head | — | Illinois |
| 40 | Clifford V. Johnson | 19 | Son | Stringer | Illinois |
Pedigree Summary
Carl + 2 siblings
Gen 1 · 4 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)