Emma Larson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Humboldt-County, Iowa

Our Model Tree links this Emma Larson across the 1920, 1930 and 1940 US Censuses in Humboldt-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 4-person household.

Age 58 b. ~1882 Female Spouse Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Humboldt-County, Iowa
Surname	Larson
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Lake Twp
1935 Residence (County)	Humboldt
Additional Details
Highest Grade	No 8
1935 Residence	Same House
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Lake Twp
Est. Birth Year	~1882

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 Emma	Age	Birth yr
Emma Larson	Spouse	—	58	~1882
Baxter Smith	Other	—	30	~1910
Lewis Larson	Head	—	64	~1876
Lyle Larson	Son	—	20	~1920

Census Appearances

1920

Humboldt, Iowa

Spouse, age 37

Humboldt, Iowa · implied b. ~1883 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Larson
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Humboldt, Iowa

Other, age 48

Humboldt, Iowa · implied b. ~1882 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Larson
Given Name	Emma
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	21
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Humboldt-County, Iowa

Spouse, age 58

Humboldt-County, Iowa · implied b. ~1882 — 4 household members

Surname	Larson
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Lake Twp
1935 Residence (County)	Humboldt
Highest Grade	No 8
1935 Residence	Same House
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

Our Model Tree links Emma Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Emma Larson

Spouse · 1940 · age 58 · b. ~1882 · 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 — Humboldt-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01167-00613)

Line	Name	Age	Relation	Occupation	Birthplace
1	Iner S Carr	54	Head	Farmer	Iowa
2	Richard Carr	16	Son	—	Minn
3	Roger Carr	16	Son	—	Minn
4	Marshall Clancy	39	Head	Farmer	Iowa
5	Wilma S Clancy	33	Wife	—	Iowa
6	Beth Clancy	11	Daughter	—	Iowa
7	Wanda Clancy	7	Daughter	—	Iowa
8	Arthur Poutre	23	Hired man	Laborer	Kansas
9	Melvin D Clancy	40	Head	Farmer	Iowa
10	Lillian Clancy	36	Wife	—	Minn
11	Andrew Clancy	15	Son	—	Iowa
12	Herald Clancy	14	Son	—	Iowa
13	Marlyn Clancy	12	Son	—	Iowa
14	Neal Clancy	61	Head	Farmer	Indiana
15	Maude Clancy	58	Wife	—	Nebraska
16	Herman Westberg	30	Head	Laborer	Iowa
17	Elsie I Westberg	25	Wife	—	Iowa
18	Allie T Saxton	81	Head	—	Iowa
19	Kate Saxton	77	Wife	—	Iowa
20	Francis D Hefley	43	Head	Farmer	Iowa
21	May Hefley	63	Mother	—	Iowa
22	Lyle Cathcart	17	Nephew	—	Iowa
23	Lola Mae Cathcart	16	Niece	—	Iowa
24	John Hefley	13	Nephew	—	Iowa
25	Enumerated At Gilmore City	None	—	—	—
26	Left By Mistake	None	—	—	—
27	Archie Hotestine	53	Head	Farmer	Iowa
28	Lewis O Larson	64	Head	Farmer	Illinois
29	Emma Larson THIS PERSON	58	Wife	—	Iowa
30	Lyle Larson	20	Son	Laborer	Iowa
31	Baxter Smith	30	Hired man	Laborer	Missouri
32	Albert Kitley	59	Head	Farmer	Illinois
33	Otella Kitley	49	Wife	—	Iowa
34	Lyle Kitley	24	Son	Farmer	Iowa
35	Dale Kitley	19	Son	Laborer	Iowa
36	Bernice Minor	13	Daughter	—	Iowa
37	August D Oleson	30	Head	Farmer	Minn
38	Rachel Oleson	24	Wife	—	Iowa
39	Anne Marie Oleson	5	Daughter	—	Iowa
40	Mary Elizabeth Lincum	4	Daughter	—	Iowa

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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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