Emma Carlson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Minnehaha-County, South Dakota

Our Model Tree links this Emma Carlson across the 1930 and 1940 US Censuses in Minnehaha-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 7-person household.

Age 49 b. ~1891 Female Spouse Born: South Dakota Married

1940 Census Record Details

Census Year	1940
Location	Minnehaha-County, South Dakota
Surname	Carlson
Given Name	Emma M
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	South Dakota
1935 Residence (City)	Red Rock Township
1935 Residence (County)	Minnehaha
Additional Details
Highest Grade	No 8
1935 Residence	Same place
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota
Township / Ward	Red Rock Township
Est. Birth Year	~1891

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 Emma	Age	Birth yr
Edna Carlson	Daughter	—	19	~1921
Viola Carlson	Daughter	—	11	~1929
Ewald Carlson	Head	—	50	~1890
George Ferhast Terhast	Other	—	20	~1920
Clarice Carlson	Daughter	—	17	~1923
Arlene Carlson	Daughter	—	15	~1925
Emma Carlson	Spouse	—	49	~1891

Census Appearances

1930

Minnehaha, South …

Spouse, age 39

Minnehaha, South Dakota · implied b. ~1891 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	Emma M
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	South Dakota
Age at First Marriage	26
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read/Write	Yes
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota

1940

Minnehaha-County, South …

Spouse, age 49

Minnehaha-County, South Dakota · implied b. ~1891 — 7 household members

Surname	Carlson
Given Name	Emma M
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	South Dakota
1935 Residence (City)	Red Rock Township
1935 Residence (County)	Minnehaha
Highest Grade	No 8
1935 Residence	Same place
Birth State	South Dakota
Birth Country	United States
Birthplace (normalized)	south dakota

Model Tree

Linked across censuses

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

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This person

Anchor record

Emma Carlson

Spouse · 1940 · age 49 · b. ~1891 · South Dakota

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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 — Minnehaha-County, South Dakota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03863-00355)

Line	Name	Age	Relation	Occupation	Birthplace
41	Margie A Swenson	2	Daughter	—	South Dakota
42	Adolph J Karli	57	Head	Farmer	Iowa
43	Emily S Karli	51	Wife	—	South Dakota
44	Palmer I Karli	21	Son	Hired Hand	South Dakota
45	Roy A Shoulin \| Shonlin	41	Head	Farmer	Iowa
46	Amanda M Shoulin \| Shonlin	40	Wife	—	Minnesota
47	Lois M Shoulin \| Shonlin	19	Daughter	—	South Dakota
48	Raymond R Shoulin \| Shonlin	17	Son	—	Minnesota
49	Donald K Shoulin \| Shonlin	16	Son	—	South Dakota
50	Lonaie M Shoulin \| Shonlin	12	Daughter	—	South Dakota
51	John C X Borgel \| Boygel	61	Head	Farmer	New York
52	Sarah C Borgel \| Boygel	79	Sister	—	Maine
53	Ivan C Elac \| Elas	21	Head	Farmer	South Dakota
54	Elizabeth S Elac \| Elas	47	Mother	—	South Dakota
55	Merle R Elac \| Elas	26	Brother	Hired Hand	South Dakota
56	Gladys Elac \| Elas	7	Sister	—	South Dakota
57	Melvin W Johnson	35	Head	Farmer	South Dakota
58	Pauline M Johnson	23	Wife	—	South Dakota
59	Jolene M Johnson	2	Daughter	—	South Dakota
60	Walter S Smith	41	Head	Farmer	South Dakota
61	Mildred I Smith	31	Wife	—	South Dakota
62	Phyllis V Smith	12	Daughter	—	South Dakota
63	Robert H Smith	8	Son	—	South Dakota
64	Roger G Smith	4	Son	—	South Dakota
65	Ewald C Carlson	50	Head	Farmer	Sweden
66	Emma M Carlson THIS PERSON	49	Wife	—	South Dakota
67	Edna I Carlson	19	Daughter	—	South Dakota
68	Clarice M Carlson	17	Daughter	—	South Dakota
69	Arlene E Carlson	15	Daughter	—	South Dakota
70	Viola G Carlson	11	Daughter	—	South Dakota
71	George P Ferhast \| Terhast	20	Hired Hand	Hired Hand	Iowa
72	Howard G Karli	27	Head	Farmer	South Dakota
73	Eva E Karli	22	Wife	—	South Dakota
74	Arthur J Karli	52	Head	Farmer	Iowa
75	Ruth M Karli	44	Wife	—	South Dakota
76	Vernon S Karli	15	Son	—	South Dakota
77	Merle A Karli	12	Son	—	South Dakota
78	Mervin C Anderson	26	Head	Farmer	South Dakota
79	Helen D Anderson	22	Wife	—	South Dakota
80	Thelma C Anderson	54	Mother	—	South Dakota

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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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