OS
Oscar Swanson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Oscar Swanson across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Andrew & Charles — first a son (b.~1892), then head of a 9-person household.
Age 28
b. ~1892
Male
Son
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | 2Nd Precinct |
| Est. Birth Year | ~1892 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Andrew Swanson | Head | — | 46 | ~1874 |
| Carl Swanson | Son | — | ~1920 | |
| Andrew Swanson | Son | — | 3 | ~1917 |
| Theodore Swanson | Son | — | 8 | ~1912 |
| Anna Swanson | Spouse | — | 41 | ~1879 |
| Clarence Swanson | Son | — | 11 | ~1909 |
| Arthur Swanson | Son | — | 16 | ~1904 |
| Oscar Swanson | Son | — | 28 | ~1892 |
| Anna Swanson | Daughter | — | 14 | ~1906 |
Census Appearances
1900
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Oscar J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | Mch |
| Birth Year | 1891 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | at school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Cook, Illinois
Son, age 19
Cook, Illinois · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Oscar W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Machinist |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 28
Cook, Illinois · implied b. ~1892 — 9 household members
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| 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 |
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 Oscar Swanson across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Andrew Swanson (~0.92 confidence) and father Charles Swanson (~0.92 confidence) and father John Swanson (~0.92 confidence) and mother Anna Swanson (~0.92 confidence) and mother Emma Swanson (~0.92 confidence) and mother Mary Swanson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Swanson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Charles Swanson
b. ~1856
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Anna Swanson
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Emma Swanson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Mary Swanson
b. ~1858
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Swanson
Son · 1920 · age 28 · b. ~1892 · Illinois
★ You are viewing this record
Sibling
Carl Swanson
Sibling · 1920 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Swanson
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Swanson
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Swanson
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Swanson
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Swanson
Sibling · 1920 · age 16
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
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
21 people indexed on this census page (ia:1920:14thcensusofpopu2025unit:0619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anton Johnson | 44 | Head | Laborer | Illinois |
| 52 | Carl Johnson | 68 | Uncle | — | Sweden |
| 53 | Gust Johnson | 26 | Boarder | Laborer | Sweden |
| 54 | Frank Lund | 24 | Head | Farmer | Illinois |
| 55 | Andrew Swanson | 46 | Head | Farmer | Sweden |
| 56 | Anna Swanson | 41 | Wife | — | Sweden |
| 57 | Anna Swanson | 14 | Daughter | — | Illinois |
| 58 | Oscar Swanson THIS PERSON | 28 | Son | — | Illinois |
| 59 | Arthur Swanson | 16 | Son | — | Illinois |
| 60 | Clarence Swanson | 11 | Son | — | Illinois |
| 61 | Theodore Swanson | 8 | Son | — | Illinois |
| 62 | Andrew Swanson | 3 | Son | — | Illinois |
| 63 | Carl Swanson | 0 | Son | — | Illinois |
| 64 | Lawrence Johnson | 28 | Head | Farmer | Illinois |
| 65 | Mabel Johnson | 27 | Wife | — | Iowa |
| 66 | Lois Johnson | 4 | Daughter | — | Illinois |
| 67 | Dorothy Johnson | 1 | Daughter | — | Illinois |
| 68 | Lawrence Johnson | 0 | Son | — | Illinois |
| 69 | Johnson | None | — | — | Illinois |
| 70 | Johnson | None | — | — | Illinois |
| 71 | Johnson | None | — | — | Illinois |
Pedigree Summary
Oscar + 6 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)