Mary Carr — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Wayne-County, Michigan

Our Model Tree links this Mary Carr across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 4-person household.

Age 51 b. ~1889 Female Spouse Born: Michigan Married

1940 Census Record Details

Census Year	1940
Location	Wayne-County, Michigan
Surname	Carr
Given Name	Mary E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Additional Details
Class of Worker	0
Highest Grade	H 4
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Township / Ward	Detroit City
Est. Birth Year	~1889

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
Betty Carr	Daughter	—	21	~1919
Percy Carr	Head	—	56	~1884
E Thomas	Son	—	19	~1921
Mary Carr	Spouse	—	51	~1889

Census Appearances

1920

Wayne, Michigan

Spouse, age 31

Wayne, Michigan · implied b. ~1889 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carr
Given Name	Marie E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	31
Marital Status	Married
Birthplace	Michigan
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

Wayne, Michigan

Spouse, age 41

Wayne, Michigan · implied b. ~1889 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carr
Given Name	Marie
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	41
Marital Status	Married
Birthplace	Michigan
Age at First Marriage	29
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Can Read/Write	Yes
Veteran	No
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Wayne-County, Michigan

Spouse, age 51

Wayne-County, Michigan · implied b. ~1889 — 4 household members

Surname	Carr
Given Name	Mary E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Detroit City
1935 Residence (County)	Wayne
Class of Worker	0
Highest Grade	H 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 Carr 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 Carr

Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-01870-00102)

Line	Name	Age	Relation	Occupation	Birthplace
1	Alfred Otto Knock	30	Head	Cashier	Michigan
2	Katherine Knock	27	Wife	—	Michigan
3	Allen Schweiniger	19	Head	Inspector	Michigan
4	Margaret Schweiniger	17	Wife	—	Michigan
5	William Schwartz	32	Head	Manager	Kentucky
6	Katherine Schwartz	32	Wife	—	Kentucky
7	Clifford E. Heckert	45	Head	Salesman	Michigan
8	Alma Heckert	43	Wife	—	Michigan
9	Mildred Heckert	19	Daughter	Switchboard	Michigan
10	John Heckert	11	Son	—	Michigan
11	Walter D. Rogers	40	Head	Dentist	Michigan
12	Lois Rogers	30	Wife	Stenographer	Michigan
13	Judith Ann Rogers	5	Daughter	—	Michigan
14	Martha E. Rogers	77	Mother	—	England
15	Georgia Rogers	59	Sister	—	Michigan
16	Edwin Wallace	50	Head	Civil Engineer	Michigan
17	Minnie B. Wallace	49	Wife	—	Indiana
18	John Elder	50	Head	Floorman	Canada Eng
19	Bessie Elder	54	Wife	—	Illinois
20	Marjorie Elder	22	Daughter	Auditor	Michigan
21	Elizabeth Holden	73	Head	—	Canada Eng
22	David Holden	26	Grandson	Salesman	Canada Eng
23	Charles Bailey	39	Head	Auditing Clerk	Michigan
24	Rosamond Bailey	36	Wife	—	Michigan
25	Karl Bailey	6	Son	—	Michigan
26	Gerald Bailey	4	Son	—	Michigan
27	David Bailey	2	Son	—	Michigan
28	Arthur Miller	37	Head	Steam Fitter	Michigan
29	Hazel Miller	43	Wife	—	Michigan
30	Harry Johnson	50	Head	Wirer	England
31	Lily Johnson	45	Wife	—	England
32	Lionel Johnson	15	Son	—	Canada Eng
33	William Behlander	48	Head	Draftsman	Ohio
34	Goldie Behlander	43	Wife	—	Ohio
35	Arthur Curtis	58	Head	Officer	England
36	Emily Curtis	62	Wife	—	England
37	Percy E. Carr	56	Head	Clerical	Indiana
38	Mary E. Carr THIS PERSON	51	Wife	—	Michigan
39	Betty Carr	21	Daughter	—	Michigan
40	E. Thomas	19	Son	Librarian	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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