OS
Oscar Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delta-County, Michigan
Our Model Tree links this Oscar Swanson across the 1920, 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delta-County, Michigan |
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Gladstone |
| 1935 Residence (County) | Delta |
| Additional Details | |
| Occupation | father's farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Father'S Farm |
| Township / Ward | Gladstone |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Ida Swanson | Spouse | — | 67 | ~1873 |
| Oscar Swanson | Son | — | 35 | ~1905 |
| John Swanson | Head | — | 64 | ~1876 |
Census Appearances
1920
Delta, Michigan
Son, age 14
Delta, Michigan · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Delta, Michigan
Son, age 25
Delta, Michigan · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Delta-County, Michigan
Son, age 35
Delta-County, Michigan · implied b. ~1905 — 3 household members
| Surname | Swanson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Gladstone |
| 1935 Residence (County) | Delta |
| Occupation | father's farm |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 (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 John Swanson (~0.92 confidence) and mother Ida Swanson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Swanson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1867
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Ida Swanson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Swanson
Son · 1940 · age 35 · b. ~1905 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Delta-County, Michigan
Open full size
1940 US Federal Census — Delta-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01745-00666)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jack La Porte | 27 | Head | Supervisor | Wisconsin |
| 42 | Ruby A. La Porte | 21 | Wife | None | Michigan |
| 43 | Gerald J. La Porte | 5 | Son | — | Michigan |
| 44 | Jack Jr. La Porte | 2 | Son | — | Michigan |
| 45 | Lloyd Morgan | 29 | Head | Cutter | Michigan |
| 46 | Thelma Morgan | 30 | Wife | None | Michigan |
| 47 | Joan Morgan | 4 | Daughter | — | Michigan |
| 48 | Patricia Morgan | 2 | Daughter | — | Michigan |
| 49 | Hannah Morgan | 55 | Head | Boarder | Michigan |
| 50 | Thomas Morgan | 37 | Son | Auto Mechanic | Michigan |
| 51 | Leo Morgan | 30 | Son | Truck Driver | Michigan |
| 52 | Rose Morgan | 24 | Daughter | Graduate Nurse | Wisconsin |
| 53 | Mary Rose Morgan | 2 | Granddaughter | — | Michigan |
| 54 | William Sawyer | 61 | Lodger | Engineer | Michigan |
| 55 | Adline Poulin | 68 | Head | None | Minnesota |
| 56 | Alma Poulin | 35 | Daughter | Operator | Michigan |
| 57 | Joseph Poulin | 30 | Son | Director | Michigan |
| 58 | Paul La Pointe | 69 | Head | None | Canada French |
| 59 | Bernard La Pointe | 16 | Son | — | Michigan |
| 60 | Miles Karnitz | 25 | Head | Laborer | Michigan |
| 61 | Marie Karnitz | 21 | Wife | None | Michigan |
| 62 | Wayne Karnitz | 0 | Son | — | Michigan |
| 63 | Nels Swanson | 62 | Head | Laborer | Sweden |
| 64 | Gerda Swanson | 56 | Wife | None | Sweden |
| 65 | Howard Swanson | 14 | Son | — | Michigan |
| 66 | John Swanson | 64 | Head | Own Farm | Sweden |
| 67 | Ida Swanson | 67 | Wife | None | Sweden |
| 68 | Oscar Swanson THIS PERSON | 35 | Son | Father'S Farm | Michigan |
| 69 | Fred G. Malnor | 34 | Head | Foreman | Michigan |
| 70 | Violet Malnor | 27 | Wife | None | Michigan |
| 71 | Nina Lee Malnor | 2 | Daughter | — | Michigan |
| 72 | Fredrick D. Malnor | 0 | Son | — | Michigan |
| 73 | Cliff Murker | 44 | Head | Foreman | Michigan |
| 74 | Helen Murker | 40 | Wife | None | Michigan |
| 75 | Genevieve Murker | 18 | Daughter | — | Michigan |
| 76 | Anna Sue Murker | 16 | Daughter | — | Michigan |
| 77 | Lois Jean Murker | 13 | Daughter | — | Michigan |
| 78 | Merita Mae Murker | 11 | Daughter | — | Michigan |
| 79 | Earl Durding | 42 | Head | — | Michigan |
| 80 | Adelina Durding | 40 | Wife | None | Michigan |
Pedigree Summary
Oscar
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)