Ruth Olson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Henry-County, Iowa

Our Model Tree links this Ruth Olson across the 1920, 1930 and 1940 US Censuses in Henry-County, Iowa (XGBoost, ~Confirmed), with identified parents Ed — first a daughter (b.~1908), then head of a 4-person household.

Age 32 b. ~1908 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year	1940
Location	Henry-County, Iowa
Surname	Olson
Given Name	Ruth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	32
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Wayne Township
1935 Residence (County)	Henry
Additional Details
Income (1939)	0
Highest Grade	H 4
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Wayne Township
Est. Birth Year	~1908

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 Ruth	Age	Birth yr
Mamie Olson	Daughter	—	39	~1901
Ruth Olson	Daughter	—	32	~1908
Ed Olson	Head	—	89	~1851
Leonard Olson	Son	—	36	~1904

Census Appearances

1920

Henry, Iowa

Other, age 12

Henry, Iowa · implied b. ~1908 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Olson
Given Name	Ruth
Relationship to Head	dau
Sex	F
Color / Race	White
Age	12
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Swedish
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Henry, Iowa

Daughter, age 22

Henry, Iowa · implied b. ~1908 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Olson
Given Name	Ruth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Henry-County, Iowa

Daughter, age 32

Henry-County, Iowa · implied b. ~1908 — 4 household members

Surname	Olson
Given Name	Ruth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	32
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Wayne Township
1935 Residence (County)	Henry
Income (1939)	0
Highest Grade	H 4
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Ruth Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ed Olson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Ed Olson

b. ~1851

Source father

● Household · direct · ~0.92

This person

Anchor record

Ruth Olson

Daughter · 1940 · age 32 · b. ~1908 · Iowa

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Sibling

Mamie Olson

Sibling · 1940 · age 39

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Leonard Olson

Sibling · 1940 · age 36

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 — Henry-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01166-01231)

Line	Name	Age	Relation	Occupation	Birthplace
41	J. Loren	25	Son	Farm Laborer	Iowa
42	Mabel J. Loren	22	Daughter-in-law	—	Iowa
43	Bert A. Gladd	48	Head	Farmer	Iowa
44	Bernice E. Gladd	49	Wife	—	Nebraska
45	G. E. Nicholson	34	Head	Farmer	Iowa
46	Fayrella Nicholson	38	Wife	—	Iowa
47	Billy June Burke	18	Daughter	—	Iowa
48	Roy M. Johnston	56	Head	Farmer	Nebraska
49	Mildred A. Johnston	52	Wife	—	Iowa
50	Cleo Johnston	19	Son	Farm Laborer	Iowa
51	Arlene Johnston	17	Daughter	—	Iowa
52	Lyle Johnston	12	Son	—	Iowa
53	Donnie Johnston	10	Son	—	Iowa
54	Evelyn Johnston	9	Daughter	—	Iowa
55	Le Alta Johnston	7	Daughter	—	Iowa
56	Oscar Tolander	75	Head	Farmer	Iowa
57	Nellie Tolander	77	Wife	—	Sweden
58	David Johanson	33	Head	Farm Laborer	Sweden
59	Viola Johanson	37	Wife	—	Iowa
60	Ed Olson	89	Head	—	Sweden
61	Mamie Olson	39	Daughter	School Teacher	Iowa
62	Leonard Olson	36	Son	Farm Laborer	Iowa
63	Ruth Olson THIS PERSON	32	Daughter	—	Iowa
64	Mabel Gordon	47	Head	New Worker	Iowa
65	Donald Gordon	16	Son	—	Iowa
66	Lloyd W. Vollmer	42	Head	Farmer	Iowa
67	Ruth Vollmer	39	Wife	—	Iowa
68	Pauline Vollmer	12	Daughter	—	Iowa
69	Thelma Jane Vollmer	5	Daughter	—	Iowa
70	Glen W. Payne	22	Hired Hand	Farm Laborer	Iowa
71	Leonard Peterson	56	Head	Farmer	Iowa
72	Mae Peterson	54	Wife	—	Iowa
73	Maynard Peterson	26	Son	Farm Laborer	Iowa
74	La Verne Peterson	23	Son	Farm Laborer	Iowa
75	Arthur A. Miller	35	Head	Farmer	Iowa
76	Alfreda Miller	35	Wife	—	Iowa
77	Milton Miller	18	Son	Farm Laborer	Iowa
78	Lois Miller	12	Daughter	—	Iowa
79	C. J. Bengston	59	Head	Farmer	Sweden
80	Lillie Bengston	52	Wife	—	Illinois

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Pedigree Summary

Ruth + 2 siblings

Gen 1 · 1 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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