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 head (b.~1892), then head of a 6-person household.

Age 48 b. ~1892 Female Head Born: Austria Widowed

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Wagner
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	48
Marital Status	Widowed
Birthplace	Austria
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Occupation	Janitress
Industry	Office building
Class of Worker	PW
Hours Worked	40
Income (1939)	780
Highest Grade	No 4
1935 Residence	Same place
Birth Country	Austria
Birthplace (normalized)	austria
Occupation	Janitress
Township / Ward	Chicago 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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Johanna Wagner	Daughter	—	19	~1921
Mary Wagner	Head	—	48	~1892
John Wagner	Son	—	25	~1915
Frank Wagner	Son	—	24	~1916
Louis Wagner	Son	—	26	~1914
Albert Wagner	Son	—	22	~1918

Census Appearances

1920

Cook, Illinois

Spouse, age 28

Cook, Illinois · implied b. ~1892 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Wagner
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Austria
Year of Immigration	1906
Naturalization Status	Naturalized
Father's Birthplace	Austria
Mother's Birthplace	Austria
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth Country	Austria
Birthplace (normalized)	austria

1930

Cook, Illinois

Spouse, age 37

Cook, Illinois · implied b. ~1893 — 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	37
Marital Status	Married
Birthplace	Austria
Age at First Marriage	20
Father's Birthplace	Austria
Mother's Birthplace	Austria
Occupation	Housework
Industry	Private family
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	German
Birth Country	Austria
Birthplace (normalized)	austria

1940

Cook-County, Illinois

Head, age 48

Cook-County, Illinois · implied b. ~1892 — 6 household members

Surname	Wagner
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	48
Marital Status	Widowed
Birthplace	Austria
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Occupation	Janitress
Industry	Office building
Class of Worker	PW
Hours Worked	40
Income (1939)	780
Highest Grade	No 4
1935 Residence	Same place
Birth Country	Austria
Birthplace (normalized)	austria

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

Head · 1940 · age 48 · b. ~1892 · 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-t0627-00986-00098)

Line	Name	Age	Relation	Occupation	Birthplace
1	James Hurst	76	Father	—	Irish Free State
2	George Buettner	42	Nephew	New Worker	Illinois
3	Bert Gustafson	37	Head	Truck Driver	Illinois
4	Margaret Gustafson	29	Wife	—	Illinois
5	Esther Gustafson	10	Daughter	—	Illinois
6	Elaine Gustafson	9	Daughter	—	Illinois
7	Bert Gustafson	7	Son	—	Illinois
8	Gerald Gustafson	2	Son	—	Illinois
9	Thomas Cooney	41	Brother in law	Maintenance Man	Illinois
10	Charles Krebs	64	Head	—	Illinois
11	Elizabeth Krebs	52	Wife	—	Illinois
12	Bessie Young	57	Head	Sewing Machine Operator	Indiana
13	Roy Young	29	Son	Punch Press Operator	Indiana
14	Charles E. Gaskin	64	Head	Watchman	England
15	Emma Gaskin	64	Wife	Sales Lady	England
16	Harry D. Nelson	26	Son in law	Billing Machine Clerk	Illinois
17	Dorcas Nelson	23	Daughter	Typist	England
18	Mary Wagner THIS PERSON	48	Head	Janitress	Austria
19	Louis Wagner	26	Son	Truck Driver	Illinois
20	John Wagner	25	Son	Punch Press Operator	Illinois
21	Frank Wagner	24	Son	Roofing Apprentice	Illinois
22	Albert Wagner	22	Son	New Worker	Illinois
23	Johanna Wagner	19	Daughter	Entry Clerk	Illinois
24	William Haiduk	58	Head	—	Austria
25	Olga Haiduk	51	Wife	Punch Press Operator	Poland
26	William Jr. Haiduk	4	Son	—	Illinois
27	Kristen Kristensen	73	Head	—	Denmark
28	Hulda Kristensen	70	Wife	—	Sweden
29	Timothy Enright	46	Head	File Clerk	New York
30	Susan Enright	46	Wife	Operator	Illinois
31	Rose Bluhm	52	Head	Bookkeeper	Illinois
32	Meta Cartwright	54	Sister	—	Illinois
33	Viola Zechlin	43	Lodger	Payroll Clerk	Illinois
34	Henry J. Jasper	42	Head	Electrician	Illinois
35	Hazel Jasper	41	Wife	—	Illinois
36	Henry J. Jr. Jasper	18	Son	New Worker	Illinois
37	James Jasper	16	Son	—	Illinois
38	George Jasper	15	Son	—	Illinois
39	Phillip Jasper	9	Son	—	Illinois
40	Joan Jasper	7	Daughter	—	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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