Nellie Thomas — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marion-County, Iowa

Our Model Tree links this Nellie Thomas across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 4-person household.

Age 57 b. ~1883 Female Spouse Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Marion-County, Iowa
Surname	Thomas
Given Name	Nellie
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Bussey
1935 Residence (County)	Marion
Additional Details
Occupation	Cook
Industry	own business
Class of Worker	OA
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Cook
Township / Ward	Bussey
Est. Birth Year	~1883

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 Nellie	Age	Birth yr
Leona Thomas	Daughter	—	21	~1919
Esther Thomas	Daughter	—	25	~1915
Edward Thomas	Head	—	58	~1882
Nellie Thomas	Spouse	—	57	~1883

Census Appearances

1920

Marion, Iowa

Spouse, age 35

Marion, Iowa · implied b. ~1885 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Nellie
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Wales
Mother's Birthplace	Wales
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Marion, Iowa

Other, age 46

Marion, Iowa · implied b. ~1884 — 48 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Nellie
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	19
Father's Birthplace	Wales
Mother's Birthplace	Wales
Occupation	Cook
Industry	Restaurant
Class of Worker	W
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Marion-County, Iowa

Spouse, age 57

Marion-County, Iowa · implied b. ~1883 — 4 household members

Surname	Thomas
Given Name	Nellie
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Bussey
1935 Residence (County)	Marion
Occupation	Cook
Industry	own business
Class of Worker	OA
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

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

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This person

Anchor record

Nellie Thomas

Spouse · 1940 · age 57 · b. ~1883 · 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 — Marion-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01181-00590)

Line	Name	Age	Relation	Occupation	Birthplace
1	Harry E. Doud	59	Head	Carpenter	Iowa
2	Sarah Doud	58	Wife	—	Iowa
3	Paul Doud	27	Son	Carpenter	Iowa
4	Marine Doud	23	Daughter	Telephone Operator	Iowa
5	James E. Sandiland	62	Head	Salesman	Iowa
6	Myrtle Sandiland	56	Wife	—	Iowa
7	E. C. Mcclure	66	Head	Medical Doctor	Iowa
8	Floy Mcclure	57	Wife	Music Teacher	Iowa
9	David Wilson	51	Head	Meat Cutter & Clerk	Iowa
10	Mary Wilson	49	Wife	—	Iowa
11	La Von Wilson	26	Daughter	Teacher	Iowa
12	Gene Wilson	19	Son	—	Iowa
13	Gerald Wilson	17	Son	—	Iowa
14	James A. Bussey	81	Head	—	Pennsylvania
15	Mary Ella Bussey	80	Wife	—	Iowa
16	Hazel B. Bussey	40	Daughter	—	Iowa
17	Edward Thomas	58	Head	Cafe Worker	Iowa
18	Nellie Thomas THIS PERSON	57	Wife	Cook	Ohio
19	Esther Thomas	25	Daughter	Teacher	Iowa
20	Leona Thomas	21	Daughter	Clerk	Iowa
21	Donald Boatman	34	Head	Laborer	Iowa
22	Glyna Boatman	32	Wife	—	Iowa
23	Thomas Boatman	10	Son	—	Iowa
24	Evan Boatman	7	Son	—	Iowa
25	Oscar Grim	49	Head	Barber	Nebraska
26	Thelma Grim	15	Daughter	—	Iowa
27	Mae Godfrey	34	Head	Clerk	Iowa
28	Margaret Godfrey	64	Mother	—	Illinois
29	Charles Dreibelbis	71	Head	Hardware Clerk	Pennsylvania
30	Viola Dreibelbis	63	Wife	—	Iowa
31	John W. Force	36	Head	Coal Miner	Iowa
32	Vella E. Force	34	Wife	—	Iowa
33	Betty J. Force	16	Daughter	—	Iowa
34	Helen Force	14	Daughter	—	Iowa
35	Colmer Force	12	Son	—	Iowa
36	Delmer Force	8	Son	—	Iowa
37	Marjorie Force	5	Daughter	—	Iowa
38	Dick Force	5	Son	—	Iowa
39	Dirk Hessing	48	Head	Doctor	Iowa
40	Mary Hessing	50	Wife	—	England

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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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