Harry Thomas — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Sheridan-County, Montana

Our Model Tree links this Harry Thomas across the 1920, 1930 and 1940 US Censuses in Sheridan-County, Montana (XGBoost, ~Confirmed), with identified parents Lena & Henry — first a head (b.~1906), then head of a 5-person household.

Age 34 b. ~1906 Male Head Born: Minnesota Married

1940 Census Record Details

Census Year	1940
Location	Sheridan-County, Montana
Surname	Thomas
Given Name	Harry N.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	School Dist 57
1935 Residence (County)	Sheridan
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	40
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota
Occupation	Farmer
Township / Ward	School Dist 57
Est. Birth Year	~1906

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 Harry	Age	Birth yr
Rosemary Thomas	Daughter	—	10	~1930
Helen Thomas	Daughter	—	12	~1928
Harry Thomas	Head	—	34	~1906
Lewis Thomas	Son	—	13	~1927
Lillie Thomas	Spouse	—	33	~1907

Census Appearances

1920

Sheridan, Montana

Son, age 14

Sheridan, Montana · implied b. ~1906 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Harvey N
Relationship to Head	Son
Sex	M
Color / Race	White
Age	14
Marital Status	Single
Birthplace	Minnesota
Father's Birthplace	Minnesota
Mother's Birthplace	Minnesota
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1930

Sheridan, Montana

Head, age 25

Sheridan, Montana · implied b. ~1905 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Harry H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	25
Marital Status	Married
Birthplace	Minnesota
Age at First Marriage	21
Father's Birthplace	Minnesota
Mother's Birthplace	Minnesota
Occupation	Farmer
Industry	General Farm
Class of Worker	W
Can Read/Write	Yes
Veteran	Yes
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1940

Sheridan-County, Montana

Head, age 34

Sheridan-County, Montana · implied b. ~1906 — 5 household members

Surname	Thomas
Given Name	Harry N.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	School Dist 57
1935 Residence (County)	Sheridan
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	40
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Lena Thomas

b. ~1883

Source mother

● Household · direct · ~0.92

Father

Henry Thomas

b. ~1888

Source father

● Household · direct · ~0.92

This person

Anchor record

Harry Thomas

Head · 1940 · age 34 · b. ~1906 · Montana

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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 — Sheridan-County, Montana Open full size

Page Contents

32 people indexed on this census page (nara:1940:m-t0627-02229-00533)

Line	Name	Age	Relation	Occupation	Birthplace
41	Marlys J. Anderson	3	Daughter	—	Montana
42	Edwin Dahl	46	Head	Farmer	N. Dakota
43	Caroline Dahl	34	Wife	—	N. Dakota
44	Edwin L. Dahl	15	Son	Laborer	Montana
45	Merle L. Dahl	13	Son	—	Montana
46	Shirley M. Dahl	11	Daughter	—	Montana
47	Peter A. Goodall	50	Head	Farmer	Denmark
48	Petra N. Goodall	48	Wife	—	Denmark
49	Rudolph M. Goodall	24	Son	Farmer	Montana
50	Harry N. Thomas THIS PERSON	34	Head	Farmer	Minnesota
51	Lillie A. Thomas	33	Wife	—	Minnesota
52	Lewis R. Thomas	13	Son	—	Minnesota
53	Helen V. Thomas	12	Daughter	—	N. Dakota
54	Rosemary Thomas	10	Daughter	—	Montana
55	Gina M. Thomas	57	Head	—	Minnesota
56	Glen H. Thomas	21	Son	—	Montana
57	Ilene E. Thomas	14	Daughter	—	Montana
58	Augusta Nelson	67	Head	—	Norway
59	James O. Nelson	38	Son	Farmer	Minnesota
60	George E. Nelson	29	Son	Laborer	Minnesota
61	Marius Ibsen	59	Head	Farmer	Denmark
62	Nellie C. G. Ibsen	48	Wife	—	Minnesota
63	Vernon C. Ab Ibsen	19	Son	—	Montana
64	Helen V. Ibsen	17	Daughter	—	Montana
65	Mabel L. Ibsen	15	Daughter	—	Montana
66	Everett O. Melby	35	Head	Farmer	N. Dakota
67	Ruby L. Melby	27	Wife	—	Minnesota
68	Lucille A. Melby	3	Daughter	—	N. Dakota
69	Jacob Gauthern	51	Head	Farmer	Norway
70	Lonzo E. Myers	56	Head	Farmer	Indiana
71	George W. Myers	23	Son	Laborer	Montana
72	Phillip Myers	18	Son	—	N. Dakota

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Pedigree Summary

Harry

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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