OS
Oscar Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Muscatine-County, Iowa
Our Model Tree links this Oscar Swanson across the 1920, 1930 and 1940 US Censuses in Muscatine-County, Iowa (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1897), then head of a 7-person household.
Age 43
b. ~1897
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Muscatine-County, Iowa |
| Surname | Swanson |
| Given Name | Oscar F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pike |
| 1935 Residence (County) | Muscatine |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Pike |
| Est. Birth Year | ~1897 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Elsie Swanson | Other | — | 31 | ~1909 |
| Fred Swanson | Son | — | 32 | ~1908 |
| Mary Swanson | Other | — | 4 | ~1936 |
| Darryl Swanson | Other | — | 2 | ~1938 |
| John Swanson | Other | — | 3 | ~1937 |
| Oscar Swanson | Son | — | 43 | ~1897 |
| John Swanson | Head | — | 69 | ~1871 |
Census Appearances
1920
Muscatine, Iowa
Son, age 23
Muscatine, Iowa · implied b. ~1897 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Oscar F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Home Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Muscatine, Iowa
Son, age 34
Muscatine, Iowa · implied b. ~1896 — 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 | 34 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Muscatine-County, Iowa
Son, age 43
Muscatine-County, Iowa · implied b. ~1897 — 7 household members
| Surname | Swanson |
| Given Name | Oscar F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pike |
| 1935 Residence (County) | Muscatine |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Swanson (~0.92 confidence) and mother Mary Swanson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Swanson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Swanson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Swanson
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Swanson
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Swanson
Son · 1940 · age 43 · b. ~1897 · Iowa
★ You are viewing this record
Sibling
Fred Swanson
Sibling · 1940 · age 32
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 — Muscatine-County, Iowa
Open full size
1940 US Federal Census — Muscatine-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01186-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John R. Haupt | 11 | Son | — | Iowa |
| 42 | Kathleen A. Haupt | 6 | Daughter | — | Iowa |
| 43 | Barbara J. Haupt | 4 | Daughter | — | Iowa |
| 44 | Tracy G. Bellich | 25 | Head | Farmer | Iowa |
| 45 | Margaret K. Bellich | 41 | Wife | Housewife | Louisiana |
| 46 | Matthew Kirk | 86 | Father-in-law | — | Indiana |
| 47 | Wilmer Halleck | 56 | Head | Farmer | Iowa |
| 48 | Anna M. Halleck | 55 | Wife | Housewife | Iowa |
| 49 | Jesse Moulton | 52 | Laborer | Farm Laborer | Kansas |
| 50 | John H. Baker | 55 | Head | Farmer | Iowa |
| 51 | Edith E. Baker | 54 | Wife | Housewife | Illinois |
| 52 | Louis W. Chown | 35 | Head | Farmer | Iowa |
| 53 | Genevieve S. Chown | 33 | Wife | Housewife | Illinois |
| 54 | Wiladine J. Chown | 8 | Daughter | — | Iowa |
| 55 | Vernabelle Brown | 14 | Sister-in-law | — | Illinois |
| 56 | Ray A. Morris | 54 | Head | Farmer | Iowa |
| 57 | Nellie M. Morris | 54 | Wife | Housewife | Iowa |
| 58 | Helen E. Morris | 25 | Daughter | School Teacher | Iowa |
| 59 | Tom E. Gideon | 72 | Head | Farmer | Iowa |
| 60 | Clara F. Gideon | 67 | Wife | Housewife | Illinois |
| 61 | Dawson M. Gideon | 43 | Son | Farmer | Iowa |
| 62 | Jay F. Gideon | 41 | Son | Farmer | Iowa |
| 63 | Frank E. Gideon | 25 | Son | Farmer | Iowa |
| 64 | Arthur L. Sissel | 47 | Head | Farmer | Iowa |
| 65 | Ethel S. Sissel | 41 | Wife | Housewife | Nebraska |
| 66 | Vernon D. Sissel | 21 | Son | — | Iowa |
| 67 | Arthur D. Sissel | 13 | Son | — | Wisconsin |
| 68 | Richard G. Sissel | 8 | Son | — | Iowa |
| 69 | Bonnadelle J. Sissel | 5 | Daughter | — | Iowa |
| 70 | Garvon D. Crow | 42 | Head | Farmer | Iowa |
| 71 | Meta M. Crow | 39 | Wife | Housewife | Wisconsin |
| 72 | Donald Lee Crow | 1 | Son | — | Iowa |
| 73 | Art Felton | 20 | Laborer | Farm Laborer | Iowa |
| 74 | John Swanson | 69 | Head | Farmer | Sweden |
| 75 | Oscar F. Swanson THIS PERSON | 43 | Son | Farmer | Iowa |
| 76 | Fred J. Swanson | 32 | Son | Farmer | Iowa |
| 77 | Elsie M. Swanson | 31 | Daughter-in-law | Housewife | Iowa |
| 78 | Mary L. Swanson | 4 | Granddaughter | — | Iowa |
| 79 | John F. Swanson | 3 | Grandson | — | Iowa |
| 80 | Darryl E. Swanson | 2 | Grandson | — | Iowa |
Pedigree Summary
Oscar + 1 sibling
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)