Thomas Henderson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Worth-County, Iowa

Our Model Tree links this Thomas Henderson across the 1920, 1930 and 1940 US Censuses in Worth-County, Iowa (XGBoost, ~Confirmed), with identified parents Ole & Bertha — first a head (b.~1912), then head of a 5-person household.

Age 28 b. ~1912 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Worth-County, Iowa
Surname	Henderson
Given Name	Thomas O.
Relationship to Head	head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Silver Lake Twp
1935 Residence (County)	Worth
Additional Details
Occupation	farmer
Industry	farm
Class of Worker	OA
Hours Worked	72
Income (1939)	0
Highest Grade	H-2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Farmer
Township / Ward	Silver Lake Twp
Est. Birth Year	~1912

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 Thomas	Age	Birth yr
Helma Henderson	Other	—	62	~1878
Thomas Henderson	Head	—	28	~1912
Helen Henderson	Daughter	—	2	~1938
Karen Henderson	Daughter	—	1	~1939
Ida Henderson	Spouse	—	21	~1919

Census Appearances

1920

Worth, Iowa

Son, age 8

Worth, Iowa · implied b. ~1912 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Henderson
Given Name	Thomas
Relationship to Head	Son
Sex	M
Color / Race	White
Age	8
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Wisconsin
Mother's Birthplace	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Worth, Iowa

Son, age 18

Worth, Iowa · implied b. ~1912 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Henderson
Given Name	Thomas
Relationship to Head	Son
Sex	M
Color / Race	White
Age	18
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Wisconsin
Mother's Birthplace	Iowa
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Worth-County, Iowa

Head, age 28

Worth-County, Iowa · implied b. ~1912 — 5 household members

Surname	Henderson
Given Name	Thomas O.
Relationship to Head	head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Silver Lake Twp
1935 Residence (County)	Worth
Occupation	farmer
Industry	farm
Class of Worker	OA
Hours Worked	72
Income (1939)	0
Highest Grade	H-2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Thomas Henderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Sorbo (~0.92 confidence) and mother Bertha Sorbo (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Ole Sorbo

b. ~1888

Source father

● Household · direct · ~0.92

Mother

Bertha Sorbo

b. ~1892

Source mother

● Household · direct · ~0.92

This person

Anchor record

Thomas Henderson

Head · 1940 · age 28 · b. ~1912 · Iowa

★ 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 — Worth-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01217-00315)

Line	Name	Age	Relation	Occupation	Birthplace
1	Walter O. Sorbo	31	head-hired	Hired Hand	Iowa
2	Thomas O. Henderson THIS PERSON	28	head	Farmer	Iowa
3	Ida G. Henderson	21	wife	None	Minn
4	Helen G. Henderson	2	daughter	—	Iowa
5	Karen M. Henderson	1	daughter	—	Iowa
6	Helma O. Henderson	62	mother	—	Iowa
7	Clarence O. Trog	49	head	Farmer	Iowa
8	Martin Bredeson	42	hired hand	Hired Hand	Norway
9	Alice G. Bredeson	37	hired hand	—	Iowa
10	La Vern W. Bredeson	15	hired hand	—	Iowa
11	Marion A. Bredeson	10	hired hand	—	Iowa
12	Ronald L. Bredeson	4	hired hand	—	Iowa
13	Ole N. Uvaag	46	head	Farmer	Norway
14	Sylvester Anderson	27	hired hand	Hired Hand	Minn
15	John O. Peterson	53	head	Farmer	Iowa
16	Josie Peterson	46	wife	—	Iowa
17	Genneviere Peterson	4	daughter	—	Iowa
18	Gurie O. Bergan	72	mother	—	Iowa
19	Gilman S. Hovland	37	head	Farmer	Iowa
20	Abbie M. Hovland	38	wife	—	Iowa
21	Fred Wilbert	23	hired hand	Hired Hand	Iowa
22	Emil S. Sybord	24	head	Farmer	Iowa
23	Ardella S. Sybord	19	wife	—	Minn
24	Albert Sybord	58	father	Farmer	Norway
25	Harry J. Talle	36	head	Farmer	Iowa
26	Lydia A. Talle	68	mother	—	Iowa
27	Otto M. Talle	26	brother	Laborer	Iowa
28	Alma J. Talle	22	sister	—	Iowa
29	Lewis B. Hagen	47	head	Farmer	Iowa
30	Mabel C. Hagen	45	wife	—	Iowa
31	Arlene S. Hagen	22	daughter	Servant	Iowa
32	Irvine K. Hagen	16	son	—	Iowa
33	Wallace D. Hagen	14	son	—	Minn
34	Lois M. Hagen	9	daughter	—	Iowa
35	Ole N. Sorbo	57	head	Farmer	Iowa
36	Bertha Sorbo	48	wife	—	Iowa
37	Alice Sorbo	26	daughter	Servant	Iowa
38	Avonel K. Sorbo	12	daughter	—	Iowa
39	Ingre H. Hagen	76	head	—	Iowa
40	Marie K. Hagen	49	daughter	—	Iowa

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Pedigree Summary

Thomas

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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