Mary Wagner — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Mary Wagner across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 4-person household.

Age 55 b. ~1885 Female Spouse Born: Germany Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Wagner
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Germany
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Germany
Birthplace (normalized)	germany
Township / Ward	Chicago City
Est. Birth Year	~1885

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 Mary	Age	Birth yr
Dorothy Wagner	Daughter	—	18	~1922
Carl Wagner	Head	—	50	~1890
Henry Wagner	Son	—	20	~1920
Mary Wagner	Spouse	—	55	~1885

Census Appearances

1920

Cook, Illinois

Spouse, age 32

Cook, Illinois · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Wagner
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Germany
Year of Immigration	1913
Naturalization Status	Alien
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1930

Cook, Illinois

Spouse, age 44

Cook, Illinois · implied b. ~1886 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Wagner
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Germany
Naturalization Status	Naturalized
Year of Immigration	1913
Age at First Marriage	27
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Mother Tongue	German
Birth Country	Germany
Birthplace (normalized)	germany

1940

Cook-County, Illinois

Spouse, age 55

Cook-County, Illinois · implied b. ~1885 — 4 household members

Surname	Wagner
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Germany
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Class of Worker	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Germany
Birthplace (normalized)	germany

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Wagner

Spouse · 1940 · age 55 · b. ~1885 · 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 — Cook-County, Illinois Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01002-00511)

Line	Name	Age	Relation	Occupation	Birthplace
41	Rose Emile	39	Wife	Beauty Operator	Illinois
42	Carl H. Emile	15	Son	—	Illinois
43	Raymond Ziegler	32	Head	Assembler	Illinois
44	Helene Ziegler	30	Wife	Cashier	Illinois
45	Robert Ziegler	5	Son	—	Illinois
46	Nelly Donnan	54	Mother-in-law	—	Illinois
47	Carl Fronzen	50	Head	Machinist	Sweden
48	Adelene Fronzen	45	Wife	—	Denmark
49	Anne S. Lupo	39	Head	Computer Operator	Italy
50	Vincent Lupo	6	Son	—	Illinois
51	Leslie Natalie Lupo	31	Sister	General Office	Illinois
52	John Banovitz	62	Head	—	Austria
53	Anna D. Banovitz	35	Daughter	General Office	Illinois
54	Adelheid Mueller	68	Head	—	Minnesota
55	Ada Mueller	44	Daughter	Bank Clerk	Wisconsin
56	Ada Dell	38	Head	Factory Hand	Michigan
57	Arlene Dell	11	Daughter	—	Illinois
58	Lawrence Tabor	48	Head	Clerk	Illinois
59	Helene Tabor	41	Wife	Dictaphone Operator	Michigan
60	Raymond Isabel	26	Head	Factory Hand	Illinois
61	Mona Isabel	20	Wife	General Office	Illinois
62	Carl A. Wagner	50	Head	Brick Layer	Illinois
63	Mary Wagner THIS PERSON	55	Wife	—	Germany
64	Henry Wagner	20	Son	Presser	Ohio
65	Dorothy Wagner	18	Daughter	Factory Hand	Ohio
66	John Langmack	63	Head	Stage Hand	Illinois
67	Emma Langmack	57	Wife	—	Germany
68	Herbert Freskow	41	Head	General Office	Nebraska
69	Marie Freskow	40	Wife	Clerk	Nebraska
70	Dorothy Freskow	17	Daughter	—	Nebraska
71	Richard Freskow	10	Son	—	Illinois
72	Fritz Nelson	41	Head	Painter	Sweden
73	Adeline Nelson	41	Wife	—	Minnesota
74	Lawrence Nelson	14	Son	—	Missouri
75	Leonard Nelson	4	Son	—	Illinois
76	Walter Freitag	33	Head	Brakeman	Illinois
77	Lorene Freitag	30	Wife	Computer	Illinois
78	Benjamin F. Kirkeby	30	Head	Clerk	S. Dakota
79	Charlotte M. Kirkeby	26	Wife	Record Clerk	Illinois
80	Jack W. Kirkeby	5	Son	—	Illinois

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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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