Arthur Olson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Hamilton-County, Iowa

Our Model Tree links this Arthur Olson across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Iowa (XGBoost, ~Confirmed), with identified parents Edvard & Malinda — 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	Hamilton-County, Iowa
Surname	Olson
Given Name	Arthur B.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clear Lake Township
1935 Residence (County)	Hamilton
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	60
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Farmer
Township / Ward	Clear Lake Township
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
Beulah Olson	Spouse	—	38	~1902
Doris Olson	Daughter	—	5	~1935
John Olson	Other	—	43	~1897
Arthur Olson	Head	—	39	~1901

Census Appearances

1920

Hamilton, Iowa

Son, age 18

Hamilton, Iowa · implied b. ~1902 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Olson
Given Name	Arthur B
Relationship to Head	Son
Sex	M
Color / Race	White
Age	18
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Norway
Mother's Birthplace	Iowa
Occupation	Farm laborer
Industry	Home farm
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Hamilton, Iowa

Head, age 29

Hamilton, Iowa · implied b. ~1901 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Olson
Given Name	Arthur B
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Norway
Mother's Birthplace	Iowa
Occupation	Farmer
Industry	Farm
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Radio Set	R
Veteran	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Hamilton-County, Iowa

Head, age 39

Hamilton-County, Iowa · implied b. ~1901 — 4 household members

Surname	Olson
Given Name	Arthur B.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clear Lake Township
1935 Residence (County)	Hamilton
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	60
Income (1939)	0
Highest Grade	8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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 Edvard Olson (~0.92 confidence) and mother Malinda Olson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Edvard Olson

b. ~1856

Source father

● Household · direct · ~0.92

Mother

Malinda Olson

b. ~1861

Source mother

● Household · direct · ~0.92

This person

Anchor record

Arthur Olson

Head · 1940 · age 39 · b. ~1901 · Iowa

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Hamilton-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01164-00261)

Line	Name	Age	Relation	Occupation	Birthplace
1	Thomas Hicks	25	Head	Farm Labor	Iowa
2	Elsie Hicks	28	Wife	—	Norway
3	Ole Emelian Rye	40	Head	Farmer	Iowa
4	Hattie Rye	40	Wife	—	Iowa
5	Hanna Jean Rye	0	Daughter	—	Iowa
6	John E. Iverson	63	Head	Farmer	Iowa
7	Tegne Iverson	55	Wife	—	Iowa
8	Signe Iverson	19	Daughter	—	Iowa
9	Delma Iverson	16	Daughter	—	Iowa
10	Claud Berry	21	Hand	Hired Hand	Iowa
11	Jemma Hauge	49	Head	Farmer	Iowa
12	Gaylord Hauge	21	Son	Farm Labor	Iowa
13	Ethel Hauge	15	Daughter	Teacher	Iowa
14	Iris Hauge	13	Daughter	—	Iowa
15	Lewis M. Johnson	58	Head	Farmer	Iowa
16	Serina Johnson	51	Wife	—	Iowa
17	Millie Johnson	24	Daughter	—	Iowa
18	Esther Johnson	22	Daughter	—	Iowa
19	Leonard Johnson	20	Son	—	Iowa
20	Emil Lotre	57	Head	Farmer	Iowa
21	Hannah Lotre	50	Wife	—	Iowa
22	Kenneth Lotre	23	Son	Farm Labor	Iowa
23	Lloyd Lotre	18	Son	Farm Labor	Iowa
24	Clifford Lotre	16	Son	—	Iowa
25	Adolph Olson	46	Head	Farmer	Iowa
26	Jenna Olson	40	Wife	—	Norway
27	Emmett Olson	20	Son	—	Iowa
28	Deloris Olson	15	Daughter	—	Iowa
29	Betty Ruth Olson	13	Daughter	—	Iowa
30	Jo Ann Olson	8	Daughter	—	Iowa
31	Elmer J. Johnson	45	Head	Farmer	Iowa
32	Maggie Johnson	46	Wife	—	Iowa
33	Marion J. Johnson	19	Son	Farm Labor	Iowa
34	Bernice Johnson	17	Daughter	—	Iowa
35	Lester R. Johnson	15	Son	—	Iowa
36	Kenneth E. Johnson	8	Son	—	Iowa
37	Arthur B. Olson THIS PERSON	39	Head	Farmer	Iowa
38	Beulah Olson	38	Wife	—	Iowa
39	Doris Elaine Olson	5	Daughter	—	Iowa
40	John A. Olson	43	Brother	Farmer	Iowa

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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)

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