Nels Nelson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Winneshiek-County, Iowa

Our Model Tree links this Nels Nelson across the 1920, 1930 and 1940 US Censuses in Winneshiek-County, Iowa (XGBoost, ~Confirmed), with identified parents A — first a head (b.~1896), then head of a 5-person household.

Age 44 b. ~1896 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Winneshiek-County, Iowa
Surname	Nelson
Given Name	Nels A. O.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Decorah city
1935 Residence (County)	Winneshiek
Additional Details
Occupation	Auditor
Industry	State Checker of Co. Records
Class of Worker	GW
Hours Worked	48
Highest Grade	Hs 4
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Auditor
Township / Ward	Decorah City
Est. Birth Year	~1896

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.

5 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Nels	Age	Birth yr
Carolyn Nelson	Daughter	—	16	~1924
Alice Nelson	Daughter	—	6	~1934
Nels Nelson	Head	—	44	~1896
Charles Nelson	Son	—	11	~1929
Florence Nelson	Spouse	—	38	~1902

Census Appearances

1920

Winneshiek, Iowa

Son, age 26

Winneshiek, Iowa · implied b. ~1894 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Nels
Relationship to Head	Son
Sex	M
Color / Race	White
Age	26
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	Laborer
Industry	Gen 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

Winneshiek, Iowa

Head, age 34

Winneshiek, Iowa · implied b. ~1896 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Nels A
Relationship to Head	Head
Sex	M
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	27
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	Auditor
Industry	County
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	30
Radio Set	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Winneshiek-County, Iowa

Head, age 44

Winneshiek-County, Iowa · implied b. ~1896 — 5 household members

Surname	Nelson
Given Name	Nels A. O.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Decorah city
1935 Residence (County)	Winneshiek
Occupation	Auditor
Industry	State Checker of Co. Records
Class of Worker	GW
Hours Worked	48
Highest Grade	Hs 4
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

A Nelson

b. ~1859

Source father

● Household · direct · ~0.92

This person

Anchor record

Nels Nelson

Head · 1940 · age 44 · b. ~1896 · 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 — Winneshiek-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01213-00609)

Line	Name	Age	Relation	Occupation	Birthplace
1	Olga Solberg	41	Wife	—	Minnesota
2	Judith Solberg	15	Daughter	—	Minnesota
3	Audrey Solberg	13	Daughter	—	Minnesota
4	Frances Spande	48	Head	Nurse	Minnesota
5	Leo C. Kuhn	51	Head	Medical Doctor	Iowa
6	Helga Kuhn	44	Wife	—	Iowa
7	Mark Kuhn	19	Son	—	Iowa
8	Rosemary Kuhn	17	Daughter	—	Iowa
9	Nels M. Larson	42	Head	Butter Maker	Iowa
10	Hattie Larson	39	Wife	—	Iowa
11	Curtis Larson	17	Son	—	Iowa
12	Olaf Hanson	48	Head	Assist Cashier	Iowa
13	C. Katherine Hanson	42	Wife	Clerk	Minnesota
14	Olga Buen	40	Lodger	Nurse Aid	Minnesota
15	William H. Howard	46	Head	Medical Doctor	Minnesota
16	Violet Howard	37	Wife	—	Minnesota
17	Olaf Hamre	40	Head	Salesman	Norway
18	Lilly O. Hamre	39	Wife	—	Iowa
19	Bertha Lorraine Hamre	15	Daughter	—	Iowa
20	Emil Hill	36	Head	Carpenter	Iowa
21	Myrtle O. Hill	29	Wife	—	Iowa
22	Phyllis Sullivan	20	Lodger	Stenographer	S. Dakota
23	Darrell Morse	43	Head	Salesman	Iowa
24	Gertrude Morse	41	Wife	—	Illinois
25	Barbara Morse	13	Daughter	—	Iowa
26	John E. Dorr	46	Head	Contractor	Iowa
27	Gina E. Dorr	44	Wife	—	Iowa
28	Lorraine Dorr	16	Daughter	—	Iowa
29	Marlyne Dorr	13	Daughter	—	Iowa
30	Gunhild O. Espeseth	73	Head	—	Norway
31	Amelia Espeseth	30	Daughter	Stenographer	Iowa
32	Nels A. O. Nelson THIS PERSON	44	Head	Auditor	Iowa
33	Florence Nelson	38	Wife	—	Iowa
34	Carolyn Nelson	16	Daughter	—	Iowa
35	Charles Nelson	11	Son	—	Iowa
36	Alice Jane Nelson	6	Daughter	—	Iowa
37	Eivind Wrethim	65	Head	—	Norway
38	Severina Wrethim	64	Wife	—	Norway
39	Oscar Grindeland	60	Head	Laborer	Iowa
40	Keziah Grindeland	50	Wife	—	Iowa

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Pedigree Summary

Nels

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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