Martha Thomas — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Mclean-County, Illinois

Our Model Tree links this Martha Thomas across the 1920, 1930 and 1940 US Censuses in Mclean-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 3-person household.

Age 54 b. ~1886 Female Spouse Born: Germany Married

1940 Census Record Details

Census Year	1940
Location	Mclean-County, Illinois
Surname	Thomas
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Germany
1935 Residence (City)	Danvers Twp
1935 Residence (County)	McLean
Naturalization Status	Naturalized
Additional Details
Industry	none
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Germany
Birthplace (normalized)	germany
Township / Ward	Danvers Twp
Est. Birth Year	~1886

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.

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

Name	Relation to head	Relative to Martha	Age	Birth yr
Viola Thomas	Daughter	—	23	~1917
Harry Thomas	Head	—	55	~1885
Martha Thomas	Spouse	—	54	~1886

Census Appearances

1920

Mclean, Illinois

Spouse, age 33

Mclean, Illinois · implied b. ~1887 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Germany
Year of Immigration	1888
Naturalization Status	Naturalized
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1930

Mclean, Illinois

Other, age 43

Mclean, Illinois · implied b. ~1887 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Thomas
Given Name	Martha
Relationship to Head	wife-H
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Germany
Naturalization Status	Naturalized
Year of Immigration	1887
Age at First Marriage	23
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1940

Mclean-County, Illinois

Spouse, age 54

Mclean-County, Illinois · implied b. ~1886 — 3 household members

Surname	Thomas
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Germany
1935 Residence (City)	Danvers Twp
1935 Residence (County)	McLean
Naturalization Status	Naturalized
Industry	none
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Germany
Birthplace (normalized)	germany

Model Tree

Linked across censuses

Our Model Tree links Martha 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

Martha Thomas

Spouse · 1940 · age 54 · b. ~1886 · Illinois

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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 — Mclean-County, Illinois Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00842-00201)

Line	Name	Age	Relation	Occupation	Birthplace
41	Harry Thomas	55	Head	Farmer	Illinois
42	Martha Thomas THIS PERSON	54	Wife	—	Germany
43	Viola Thomas	23	Daughter	None	Illinois
44	Homer Gehrs	38	Head	Farmer	Missouri
45	Johanna Gehrs	44	Wife	—	Illinois
46	Louise Gehrs	8	Daughter	—	Ill.
47	Louis Bernahl	19	Lodger	Farm Laborer	Ill.
48	Carl Bermeau	44	Head	Farmer	Ill.
49	Clara Bermeau	48	Sister	—	Ill.
50	Albert Bermeau	42	Brother	Farm Laborer	Ill.
51	Lawrence Deal	40	Head	Farmer	Ill.
52	Hazel Deal	35	Wife	—	Ill.
53	Margaret Deal	15	Daughter	—	Ill.
54	Richard Deal	9	Son	—	Ill.
55	Lois Jean Deal	2	Daughter	—	Ill.
56	Robert Willie Rostic	49	Head	Farmer	West Virginia
57	Mamie Rostic	51	Wife	—	West Virginia
58	Gladys Rostic	21	Daughter	—	Ill.
59	Pearl Rostic	19	Daughter	—	Ill.
60	James Rostic	17	Son	—	Ill.
61	Kathryn Rostic	15	Daughter	—	Ill.
62	Lawrence Burden	25	Lodger	Farm Laborer	Iowa
63	Otis Perkins	33	Head	Farm Laborer	Kentucky
64	Gladys Perkins	31	Wife	—	Kentucky
65	Charles Irwin	53	Head	Farm	Tennessee
66	Harriett Irwin	45	Wife	—	Tennessee
67	Lyman Irwin	27	Son	Factory Worker	Ill.
68	Lyle Irwin	29	Son	Farm Laborer	Ill.
69	Albert Schewe	39	Head	Farmer	Ill.
70	Allie Schewe	37	Wife	—	Kentucky
71	Doris Jean Schewe	14	Daughter	—	Ill.
72	Albert Mitchell Schewe	3	Son	—	Ill.
73	Sallie Mitchell	70	Mother-in-law	—	Kentucky
74	John O'Toole	70	Lodger	—	Ohio
75	Roy Mcreynolds	48	Head	Farmer	Ill.
76	Faye Mcreynolds	41	Wife	—	Ill.
77	Donald Mcreynolds	22	Son	—	Ill.
78	George Kuhl	45	Head	Farmer	Ill.
79	Elsa Kuhl	43	Wife	—	Ill.
80	Lorraine Kuhl	16	Daughter	—	Ill.

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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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