AS
Arthur Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Arthur Swanson across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed), with identified parents August & Bondina — first a head (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Swanson |
| Given Name | Arthur L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | Laborer |
| Industry | Mining Machinery |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 820 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Helen Swanson | Spouse | — | 36 | ~1904 |
| Helen Swanson | Daughter | — | 9 | ~1931 |
| Arthur Swanson | Head | — | 39 | ~1901 |
| James Swanson | Son | — | 16 | ~1924 |
Census Appearances
1920
Wapello, Iowa
Son, age 18
Wapello, Iowa · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Arthur B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Wapello, Iowa
Other, age 28
Wapello, Iowa · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Arthur L |
| Relationship to Head | son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | clerk |
| Industry | drug store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | yes WW |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Head, age 39
Wapello-County, Iowa · implied b. ~1901 — 4 household members
| Surname | Swanson |
| Given Name | Arthur L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Occupation | Laborer |
| Industry | Mining Machinery |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 820 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 Arthur Swanson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father August Swanson (~0.92 confidence) and mother Bondina Swanson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Swanson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Bondina Swanson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Swanson
Head · 1940 · age 39 · b. ~1901 · Iowa
★ 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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John C. Jr. Muchow | 6 | Son | — | Illinois |
| 2 | W. Edward Muchow | 5 | Son | — | Illinois |
| 3 | Helen K. Muchow | 1 | Daughter | — | Iowa |
| 4 | Floyd E. Rolison | 52 | Head | Machinist Helper | Iowa |
| 5 | Theresa M. Rolison | 49 | Wife | — | Illinois |
| 6 | W. Francis Rolison | 24 | Son | Taxi Driver | Iowa |
| 7 | R. Wayne Rolison | 16 | Son | — | Iowa |
| 8 | William A. Larson | 32 | Son-in-law | Sales Clerk | Iowa |
| 9 | Floriene R. Larson | 26 | Daughter | — | Iowa |
| 10 | Nancy Ann Larson | 5 | Grand-daughter | — | Iowa |
| 11 | Charles O. West | 38 | Head | Assembler | Missouri |
| 12 | Lois West | 36 | Wife | — | Iowa |
| 13 | Daniel M. West | 2 | Son | — | Iowa |
| 14 | Ora L. Edson | 58 | Head | Cook | Iowa |
| 15 | George W. Hartley | 33 | Head | Laborer | Iowa |
| 16 | Rera F. Hartley | 31 | Wife | — | Iowa |
| 17 | Marjorie M. Hartley | 13 | Daughter | — | Iowa |
| 18 | Rose M. Hartley | 12 | Daughter | — | Illinois |
| 19 | Iva Joan Hartley | 6 | Daughter | — | Iowa |
| 20 | Ivan G. Hartley | 4 | Son | — | Iowa |
| 21 | Walter Williams | 41 | Roomer | Laborer | Missouri |
| 22 | Walter G. Williams | 15 | Roomer | — | Iowa |
| 23 | Robert Risney | 33 | Head | Machinery Oiler | Iowa |
| 24 | Twila Mae Risney | 24 | Wife | — | Iowa |
| 25 | John G. Graffitt | 46 | Head | Appliance Salesman | Michigan |
| 26 | Anne A. Graffitt | 47 | Wife | — | Illinois |
| 27 | Barbara L. Graffitt | 11 | Daughter | — | Iowa |
| 28 | Joan P. Graffitt | 9 | Daughter | — | Iowa |
| 29 | Ralph L. Olson | 32 | Head | Sales Clerk | Iowa |
| 30 | Jeanette C. Olson | 31 | Wife | — | Iowa |
| 31 | Marilee K. Olson | 7 | Daughter | — | Iowa |
| 32 | James R. Mccart | 31 | Head | Baker | Iowa |
| 33 | Juanita A. Mccart | 29 | Wife | — | Iowa |
| 34 | Sally Ann Mccart | 6 | Daughter | — | Iowa |
| 35 | Anna B. Ward | 62 | Head | — | Iowa |
| 36 | Eleanor M. Ward | 22 | Daughter | Secretary | Missouri |
| 37 | Arthur L. Swanson THIS PERSON | 39 | Head | Laborer | Iowa |
| 38 | Helen M. Swanson | 36 | Wife | — | Iowa |
| 39 | James A. Swanson | 16 | Son | — | Iowa |
| 40 | Helen J. Swanson | 9 | Daughter | — | Iowa |
Pedigree Summary
Arthur
Gen 1 · 2 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)