Mary Baldwin — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · St.-Clair-County, Michigan

Our Model Tree links this Mary Baldwin across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.

Age 58 b. ~1882 Female Spouse Born: Indiana Married

1940 Census Record Details

Census Year	1940
Location	St.-Clair-County, Michigan
Surname	Baldwin
Given Name	Mary M. (x)
Relationship to Head	wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Port Huron
1935 Residence (County)	St. Clair
Additional Details
Highest Grade	No 8
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	Port Huron
Est. Birth Year	~1882

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Eleanor Baldwin	Daughter	—	18	~1922
Warner Baldwin	Head	—	59	~1881
Mary Baldwin	Spouse	—	58	~1882

Census Appearances

1920

St Clair, …

Spouse, age 37

St Clair, Michigan · implied b. ~1883 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Baldwin
Given Name	May
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Ohio
Mother's Birthplace	Indiana
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

St Clair, …

Spouse, age 48

St Clair, Michigan · implied b. ~1882 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Baldwin
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	21
Father's Birthplace	Indiana
Mother's Birthplace	Indiana
Occupation	Dressmaker
Industry	At Home
Class of Worker	OA
Can Read/Write	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

St.-Clair-County, Michigan

Spouse, age 58

St.-Clair-County, Michigan · implied b. ~1882 — 3 household members

Surname	Baldwin
Given Name	Mary M. (x)
Relationship to Head	wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Port Huron
1935 Residence (County)	St. Clair
Highest Grade	No 8
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

Our Model Tree links Mary Baldwin 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 Baldwin

Spouse · 1940 · age 58 · b. ~1882 · 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 — St.-Clair-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01816-00401)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mildred L. Agnew	32	Head	—	Michigan
2	Billy J. (X) Agnew	14	daughter	—	Michigan
3	Gloria Agnew	5	daughter	—	Michigan
4	Mona B. Agnew	10	daughter	—	Michigan
5	Frances Macklem	17	Cousin	—	Michigan
6	Ethel Macklem	53	niece	Housework	Michigan
7	Andrew J. (X) Smith	81	Head	—	Canada
8	Nellie L. Smith	69	wife	—	Michigan
9	Warner W. Baldwin	59	Head	Moulder	Ohio
10	Mary M. (X) Baldwin THIS PERSON	58	wife	—	Indiana
11	Eleanor Baldwin	18	daughter	Saleslady	Michigan
12	Albert J. Schatzline	36	Head	Pipefitter	Michigan
13	Marion J. Schatzline	34	wife	—	Michigan
14	Donald E. Schatzline	16	son	—	Michigan
15	George W. Livingston	25	lodger	Cleaner	Michigan
16	Robert L. (X)	37	Head	—	Michigan
17	Theresa	44	wife	—	Michigan
18	Donna J. Moore	16	gr. niece	—	Michigan
19	Albert A. Gaines	46	Head	Salesman	Michigan
20	Edna B. (X) Gaines	46	wife	—	Michigan
21	Bessie Donaghy	22	Head	Operator	Michigan
22	Thomas Donaghy	5	son	—	Michigan
23	Patricia Donaghy	4	daughter	—	Michigan
24	Ronald Donaghy	2	son	—	Michigan
25	John V. (X) Battram	39	Head	Salesman	Canada
26	Ethel M. Battram	38	wife	Supervisor	Iowa
27	John V. Ii Battram	10	son	—	W. Virginia
28	Ethyl L. Battram	5	daughter	—	W. Virginia
29	Lee (X) Barrow	39	Head	Accountant	Michigan
30	Margaret Barrow	40	wife	—	Wisconsin
31	Sebastian Kash	61	Head	Proprietor	Germany
32	Kennedy Walter Kash	44	lodger	Tool Grinder	Pennsylvania
33	Albert L. Charles	25	Head	Inspector	Michigan
34	Margaret A. (X) Charles	23	wife	Tacker	Canada
35	Edward Charles	5	son	—	Michigan
36	Keith Charles	2	son	—	Michigan
37	Victor J. (X) Haule	19	Head	Truck Driver	Michigan
38	Bernice O. Haule	18	wife	—	Michigan
39	Velma Jean Haule	0	daughter	—	Michigan
40	Albert	43	Head	—	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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