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Mary Lang — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Wayne-County, Michigan

Our Model Tree links this Mary Lang across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.

Age 13 b. ~1927 Female Daughter Born: Michigan Single

1940 Census Record Details

Census Year	1940
Location	Wayne-County, Michigan
Surname	Lang
Given Name	Mary Lou
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	13
Marital Status	Single
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Additional Details
Highest Grade	No 7
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Township / Ward	Detroit City
Est. Birth Year	~1927

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Elizabeth Lang	Daughter	—	11	~1929
Howard Lang	Head	—	43	~1897
Margaret Lang	Daughter	—	9	~1931
Donald Lang	Son	—	15	~1925
Howard Lang	Son	—	16	~1924
Roger Lang	Son	—	2	~1938
Ella Lang	Spouse	—	40	~1900
Nancy Lang	Daughter	—	5	~1935
Mary Lang	Daughter	—	13	~1927

Census Appearances

1930

Wayne, Michigan

Daughter, age 3

Wayne, Michigan · implied b. ~1927 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Lange
Given Name	Mary L.
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	3
Marital Status	Single
Birthplace	Michigan
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Wayne-County, Michigan

Daughter, age 13

Wayne-County, Michigan · implied b. ~1927 — 9 household members

Surname	Lang
Given Name	Mary Lou
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	13
Marital Status	Single
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Highest Grade	No 7
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Linked across censuses

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

Show:

This person

Anchor record

Mary Lang

Daughter · 1940 · age 13 · b. ~1927 · Michigan

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Sibling

Nancy Lang

Sibling · 1940 · age 5

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Margaret Lang

Sibling · 1940 · age 9

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Roger Lang

Sibling · 1940 · age 2

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Howard Lang

Sibling · 1940 · age 16

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Donald Lang

Sibling · 1940 · age 15

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Elizabeth Lang

Sibling · 1940 · age 11

Source co-child of head (derived)

● Co-child · derived · ~0.88

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-t0627-01840-00865)

Line	Name	Age	Relation	Occupation	Birthplace
1	Virginia Furnick	17	Daughter	—	Michigan
2	George Zidicko	48	Head	Roof & Metal	Poland
3	Benedicta (X) Zidicko	47	Wife	—	Poland
4	Irene Zidicko	23	Daughter	Inspector - Rubber	New Jersey
5	Jennie Zidicko	21	Daughter	Trim - Inspector	New Jersey
6	Marion Zidicko	17	Son	New Worker	Michigan
7	Robert W (X) Douglass	38	Head	Type Setter	Scotland
8	Elma Douglass	32	Wife	—	Scotland
9	Robert Douglass	2	Son	—	Michigan
10	May T (X) Howard	73	Head	—	Michigan
11	Karl M Holmstock	55	Lodger	Baker	Denmark
12	Clifford Delka	46	Head	Machine Adjuster	Canada Eng
13	Lulu E (X) Delka	32	Wife	—	Michigan
14	George Edwards	28	Head	Machine Set Up	Michigan
15	Emily (X) Edwards	25	Wife	—	Canada Eng
16	Charles Edwards	4	Son	—	Michigan
17	Joyce Edwards	1	Daughter	—	Michigan
18	David L Donahue	35	Head	Sub Station Oper	Michigan
19	Alice M (X) Donahue	35	Wife	—	Ohio
20	Patricia Donahue	4	Daughter	—	Michigan
21	Irene Ann Donahue	0	Daughter	—	Michigan
22	Mark P Yelanich	30	Head	Shipping Clerk	Penna
23	Mary (X) Yelanich	34	Wife	—	Canada Eng
24	Gordon Yelanich	5	Son	—	Michigan
25	Arthur Petre	32	Brother in law	Baker	Canada Eng
26	Norman (X) Martin	53	Head	Tool Edge	England
27	Irene Martin	42	Wife	Sales Lady	England
28	Norman Jr Martin	19	Son	Motor Repair	England
29	Arthur Schwerdenbach	37	Head	Utility Man	Michigan
30	Minnie (X) Schwerdenbach	37	Wife	—	Mich
31	Mark Schwerdenbach	12	Son	—	Mich
32	Howard Lang	43	Head	Dye Setter	Ohio
33	Ella M (X) Lang	40	Wife	—	Ohio
34	Howard Lang	16	Son	New Worker	Michigan
35	Donald Lang	15	Son	—	Michigan
36	Mary Lou Lang THIS PERSON	13	Daughter	—	Michigan
37	Elizabeth Lang	11	Daughter	—	Michigan
38	Margaret Lang	9	Daughter	—	Michigan
39	Nancy Lang	5	Daughter	—	Michigan
40	Roger Lang	2	Son	—	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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