Mary Klein — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Wayne-County, Michigan

Our Model Tree links this Mary Klein across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 5-person household.

Age 44 b. ~1896 Female Spouse Born: Michigan Married

1940 Census Record Details

Census Year	1940
Location	Wayne-County, Michigan
Surname	Klein
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Additional Details
Hours Worked	0
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same Place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Township / Ward	Detroit City
Est. Birth Year	~1896

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
George Klein	Head	—	45	~1895
George Klein	Son	—	14	~1926
Lorraine Klein	Daughter	—	16	~1924
Leonard Klein	Son	—	22	~1918
Mary Klein	Spouse	—	44	~1896

Census Appearances

1920

Wayne, Michigan

Spouse, age 26

Wayne, Michigan · implied b. ~1894 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Klein
Given Name	Mary
Relationship to Head	wife
Sex	F
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Michigan
Father's Birthplace	Poland
Mother's Birthplace	Poland
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Polish
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

Wayne, Michigan

Spouse, age 34

Wayne, Michigan · implied b. ~1896 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Klein
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Michigan
Age at First Marriage	20
Father's Birthplace	Poland
Mother's Birthplace	Poland
Can Read/Write	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Wayne-County, Michigan

Spouse, age 44

Wayne-County, Michigan · implied b. ~1896 — 5 household members

Surname	Klein
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Hours Worked	0
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same Place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Linked across censuses

Our Model Tree links Mary Klein 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 Klein

Spouse · 1940 · age 44 · b. ~1896 · Michigan

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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 — Wayne-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01866-00501)

Line	Name	Age	Relation	Occupation	Birthplace
1	Edmund Stylicki	20	Brother	—	Michigan
2	George Bober	42	Head	Die Maker	Albania
3	Elizabeth Bober	36	Wife	—	Albania
4	Elizabeth Bober	16	Daughter	—	Michigan
5	Edward Bober	13	Son	—	Michigan
6	George Klein	45	Head	Coal Admin	Michigan
7	Mary Klein THIS PERSON	44	Wife	—	Michigan
8	Leonard Klein	22	Son	Driver	Michigan
9	Lorraine Klein	16	Daughter	Music Teacher	Michigan
10	George Jr. Klein	14	Son	—	Michigan
11	Joseph Buczek	24	Head	Assembly	Pennsylvania
12	Margaret Buczek	19	Wife	—	Michigan
13	Beverly Buczek	0	Daughter	—	Michigan
14	John Kerpes	34	Head	Painter	Pennsylvania
15	Mary Kerpes	31	Wife	—	Albania
16	Helen Kerpes	11	Daughter	—	Ohio
17	Mary Kerpes	10	Daughter	—	Ohio
18	Doris Kerpes	8	Daughter	—	Ohio
19	George Kerpes	31	Brother	Trimming Dept	Pennsylvania
20	Ann Kerpes	66	Mother	—	Albania
21	Mary Lucaskavitz	57	Head	—	Poland
22	Bernard Lucaskavitz	29	Son	Assembler	New York
23	Evelyn Lucaskavitz	20	Daughter	—	Michigan
24	Ernest Kowalczyk	26	Son-in-law	Finisher	Michigan
25	Regina Kowalczyk	26	Daughter	—	New York
26	Bernice Lewandowski	21	Boarder	—	Michigan
27	Anthony Burt	45	Head	Fender Sprayer	Poland
28	Leocadia Burt	44	Wife	—	Poland
29	Raymond Burt	20	Son	Motor Blocks	Michigan
30	Joan Burt	9	Daughter	—	Michigan
31	Lester Bumpus	37	Head	Patrolman (Detective)	Maine
32	Martha Bumpus	39	Wife	—	Michigan
33	Joseph Miller	26	Head	Assembly Line	Michigan
34	Lucille Miller	23	Wife	—	Michigan
35	Bruce Miller	4	Son	—	Michigan
36	Judith Miller	0	Daughter	—	Michigan
37	Anna Gorski	41	Head	Machine Opr	Poland
38	Adelle Gorski	18	Daughter	Janitress	Michigan
39	Leo Gorski	10	Son	—	Michigan
40	Albert Jericks	44	Head	Fireman	Michigan

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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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