AO
Arthur Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ada-County, Idaho
Our Model Tree links this Arthur Olson across the 1920, 1930 and 1940 US Censuses in Ada-County, Idaho (XGBoost, ~Confirmed), with identified parents Lewis & Hanna — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ada-County, Idaho |
| Surname | Olson |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Boise |
| 1935 Residence (County) | Ada |
| Additional Details | |
| Occupation | Stereotype Apprentice |
| Industry | Publishing Co. |
| Class of Worker | PW |
| Hours Worked | 64 |
| Income (1939) | 100 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Stereotype Apprentice |
| Township / Ward | Boise |
| Est. Birth Year | ~1917 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Hanna Olson | Spouse | — | 51 | ~1889 |
| Lewis Olson | Head | — | 52 | ~1888 |
| Arthur Olson | Son | — | 23 | ~1917 |
Census Appearances
1920
Ada, Idaho
Son, age 3
Ada, Idaho · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Mother Tongue | Swedish |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1930
Ada, Idaho
Son, age 13
Ada, Idaho · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Ada-County, Idaho
Son, age 23
Ada-County, Idaho · implied b. ~1917 — 3 household members
| Surname | Olson |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Boise |
| 1935 Residence (County) | Ada |
| Occupation | Stereotype Apprentice |
| Industry | Publishing Co. |
| Class of Worker | PW |
| Hours Worked | 64 |
| Income (1939) | 100 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Olson (~0.92 confidence) and mother Hanna Olson (~0.92 confidence) and mother Hanna Olson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Olson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Hanna Olson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Hanna Olson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Olson
Son · 1940 · age 23 · b. ~1917 · Idaho
★ 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 — Ada-County, Idaho
Open full size
1940 US Federal Census — Ada-County, Idaho
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00735-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Kaufman | 11 | Son | — | Idaho |
| 42 | Chester T. Guymon | 48 | Head | Concrete Mixer | Missouri |
| 43 | Fleda E. Guymon | 45 | Wife | Housekeeper | Nebraska |
| 44 | Hannah R. Duffy | 70 | Head | — | Pennsylvania |
| 45 | Henry R. Litz | 27 | Head | Rock Crusher | Nebraska |
| 46 | Dorothy Mae Litz | 20 | Wife | — | Massachusetts |
| 47 | Lawrence Litz | 0 | Son | — | Idaho |
| 48 | Perry E. Darnell | 58 | Head | Carpenter | Arkansas |
| 49 | Carrie B. Darnell | 56 | Wife | Housekeeper | Arkansas |
| 50 | Bobbie A. Darnell | 12 | Daughter | — | Texas |
| 51 | Jerry B. Cassidy | 26 | Head | Draftsman | Montana |
| 52 | Lola Mae Cassidy | 26 | Wife | Housework | Idaho |
| 53 | Ronald Cassidy | 2 | Son | — | Idaho |
| 55 | Lewis Olson | 52 | Head | Foreman | Norway |
| 56 | Hanna Olson | 51 | Wife | — | Norway |
| 57 | Arthur L. Olson THIS PERSON | 23 | Son | Stereotype Apprentice | Idaho |
| 58 | William Johnson | 26 | Head | Painter | Arkansas |
| 59 | Willa Mae Johnson | 21 | Wife | Housework | Arkansas |
| 60 | James Cramer | 60 | Head | Road Grader Operator | Missouri |
| 61 | Maude S. Cramer | 54 | Wife | — | Missouri |
| 62 | Charles Hunt | 51 | Head | Janitor | Idaho |
| 63 | Mary Hunt | 40 | Wife | Cook | Idaho |
| 64 | Gersaim Halstrom | 34 | Head | Janitor | Idaho |
| 65 | Ellen Halstrom | 29 | Wife | — | Arkansas |
| 66 | James V. Halstrom | 2 | Son | — | Idaho |
| 68 | Lee A. Card | 46 | Head | Sawyer | Pennsylvania |
| 69 | Harry C. D. Card | 42 | Head | Scaler | Pennsylvania |
| 70 | Rachel Card | 40 | Wife | Chambermaid | Idaho |
| 71 | Stanley Chas Card | 18 | Son | Unable To Work | Idaho |
| 72 | Albert L. Lane | 52 | Head | Farm Laborer | Missouri |
| 73 | Welsie Angeline Lane | 42 | Wife | — | Arkansas |
| 74 | Carlton Lane | 12 | Son | — | Idaho |
| 75 | Viola Lane | 11 | Daughter | — | Idaho |
| 76 | Frances Fitzpatrick | 40 | Head | — | Tennessee |
| 77 | Harold Zeigler | 27 | Lodger | Dishwasher | Nebraska |
| 78 | Charles Class | 54 | Lodger | Cook | Idaho |
| 79 | Philip O'Connell | 35 | Lodger | Powder Man | Montana |
| 80 | Francis S. Goodrich | 44 | Head | Chef | Ohio |
Pedigree Summary
Arthur
Gen 1 · 3 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)