Ellen Thompson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Sweet-Grass-County, Montana

Our Model Tree links this Ellen Thompson across the 1930 and 1940 US Censuses in Sweet-Grass-County, Montana (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 7-person household.

Age 48 b. ~1892 Female Spouse Born: Norway Married

1940 Census Record Details

Census Year	1940
Location	Sweet-Grass-County, Montana
Surname	Thompson
Given Name	Ellen E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Norway
1935 Residence (City)	School District No. 1 outside of Big Timber City
1935 Residence (County)	Sweet Grass
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Highest Grade	No 7
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway
Township / Ward	School District No 1 Outside Of Big Timber City
Est. Birth Year	~1892

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.

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

Name	Relation to head	Relative to Ellen	Age	Birth yr
Amos Thompson	Son	—	13	~1927
Kenneth Thompson	Son	—	7	~1933
Solveig Thompson	Daughter	—	5	~1935
Sven Thompson	Head	—	60	~1880
Anna Thompson	Daughter	—	15	~1925
Ellen Thompson	Spouse	—	48	~1892
Theodore Thompson	Son	—	19	~1921

Census Appearances

1930

Sweet Grass, …

Other, age 38

Sweet Grass, Montana · implied b. ~1892 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thompson
Given Name	Ellen H
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Norway
Naturalization Status	Naturalized
Year of Immigration	1920
Age at First Marriage	28
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read/Write	Yes
Mother Tongue	Norwegian
Birth Country	Norway
Birthplace (normalized)	norway

1940

Sweet-Grass-County, Montana

Spouse, age 48

Sweet-Grass-County, Montana · implied b. ~1892 — 7 household members

Surname	Thompson
Given Name	Ellen E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Norway
1935 Residence (City)	School District No. 1 outside of Big Timber City
1935 Residence (County)	Sweet Grass
Naturalization Status	Naturalized
Class of Worker	0
Highest Grade	No 7
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway

Model Tree

Linked across censuses

Our Model Tree links Ellen Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Ellen Thompson

Spouse · 1940 · age 48 · b. ~1892 · 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 — Sweet-Grass-County, Montana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02232-00343)

Line	Name	Age	Relation	Occupation	Birthplace
1	James Nord	20	Son	Laborer	Montana
2	Maxine Nord	18	Daughter	—	Montana
3	William L. Thomas	32	Stepson	Attendant	Missouri
4	Henry Aasum	67	Head	—	Norway
5	Annie Aasum	69	Wife	—	Norway
6	Clarence P. Avchenko	24	Head	Mechanic	S. Dakota
7	Selma Avchenko	23	Wife	—	Montana
8	Willard Edwin Avchenko	2	Son	—	Montana
9	Oscar K. Vik	52	Head	Farmer	Norway
10	Gurine Vik	55	Wife	—	Norway
11	Lola G. Vik	16	Daughter	Waitress	Montana
12	Boris Thobro	30	Boarder	Operator	Norway
13	Martha F. Thobro	23	Sister-in-law	Servant	S. Dakota
14	Frank Bergholm	64	Head	Farmer	Sweden
15	Emma Bergholm	54	Wife	—	Minnesota
16	Adeline Bergholm	26	Daughter	Saleswoman	N. Dakota
17	Floyd Bergholm	24	Son	Mechanic	N. Dakota
18	Erwin Bergholm	15	Son	—	Montana
19	Lottie L. Stubblefield	67	Head	Seamstress	Washington
20	Ida L. Busha	82	Head	—	Wisconsin
21	Lenore E. Busha	51	Daughter	—	Montana
22	Harold L. Esp	23	Head	Laborer	Montana
23	Marjorie M. Esp	21	Wife	Telephone Operator	Iowa
24	Larry R. Esp	1	Son	—	Montana
25	August L. Jr. Mathes	27	Head	Farmer	Montana
26	Dora P. Mathes	26	Wife	—	Montana
27	Joseph D. Mathes	29	Brother	Farmer	English
28	George B. Conwell	63	Head	Farmer	Missouri
29	Jane E. Conwell	49	Wife	—	Kansas
30	Sven Thompson	60	Head	Farmer	Norway
31	Ellen E. Thompson THIS PERSON	48	Wife	—	Norway
32	Theodore A. Thompson	19	Son	Laborer	Montana
33	Anna E. Thompson	15	Daughter	—	Montana
34	Amos E. Thompson	13	Son	—	Montana
35	Kenneth L. Thompson	7	Son	—	Montana
36	Solveig M. Thompson	5	Daughter	—	Montana
37	Thorvald Aalgard	48	Head	Laborer	Norway
38	Gladys Aalgard	31	Wife	—	Norway
39	Agnes M. Aalgard	13	Daughter	—	Montana
40	Gertrude A. Aalgard	11	Daughter	—	Montana

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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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