Mary Hamilton — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Lorain-County, Ohio

Our Model Tree links this Mary Hamilton across the 1920, 1930 and 1940 US Censuses in Lorain-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 4-person household.

Age 60 b. ~1880 Female Spouse Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Lorain-County, Ohio
Surname	Hamilton
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Elyria city
1935 Residence (County)	Lorain
Additional Details
Highest Grade	8
1935 Residence	Same house
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Elyria City
Est. Birth Year	~1880

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
Dorothy Hamilton	Daughter	—	17	~1923
Oswald Hamilton	Head	—	64	~1876
Gordon Hamilton	Son	—	32	~1908
Mary Hamilton	Spouse	—	60	~1880

Census Appearances

1920

Lorain, Ohio

Spouse, age 42

Lorain, Ohio · implied b. ~1878 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hamilton
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Lorain, Ohio

Spouse, age 52

Lorain, Ohio · implied b. ~1878 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hamilton
Given Name	Mary
Relationship to Head	wife
Sex	F
Color / Race	White
Age	52
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	22
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	none
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Lorain-County, Ohio

Spouse, age 60

Lorain-County, Ohio · implied b. ~1880 — 4 household members

Surname	Hamilton
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Elyria city
1935 Residence (County)	Lorain
Highest Grade	8
1935 Residence	Same house
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Mary Hamilton 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 Hamilton

Spouse · 1940 · age 60 · b. ~1880 · Ohio

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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 — Lorain-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03103-00387)

Line	Name	Age	Relation	Occupation	Birthplace
1	Jane Gray	79	Head	—	Ohio
2	Haylo Fridustine	46	Head	—	Ohio
3	Donald Fridustine	25	Son	Carpenter	Ohio
4	David Fridustine	19	son	Carpenter Helper	Ohio
5	Harold Fridustine	17	son	—	Ohio
6	Laura Fridustine	15	Daughter	—	Ohio
7	Clyde Fridustine	12	son	—	Ohio
8	Alvin Fridustine	11	son	—	Ohio
9	Jerry Fridustine	5	son	—	Ohio
10	Jean Williams	22	daughter	Clerk	Ohio
11	Roger Williams	23	son in law	Dispatcher	Illinois
12	Nelson Thome	27	Head	Labor	Ohio
13	Helen Thome	25	Wife	—	Ohio
14	Mary Ellen Thome	1	daughter	—	Ohio
15	Shad Ferrell	49	Head	Pantry Cook	Ohio
16	Wilbur Ferrell	26	son	Shipper	Ohio
17	Frank Ignasik	35	Head	Press Operator	Ohio
18	Marion Ignasik	30	Wife	—	Ohio
19	Donald Ignasik	7	son	—	Ohio
20	Nelson T. Mcgregor	53	Head	Timekeeper	Ohio
21	Kathryn Mcgregor	47	Wife	—	Ohio
22	James Mcgregor	19	son	Labor	Ohio
23	Helen Mcgregor	17	daughter	—	Ohio
24	Oswald Hamilton	64	Head	Foreman	Pennsylvania
25	Mary Hamilton THIS PERSON	60	Wife	—	Ohio
26	Dorothy Hamilton	17	daughter	—	Ohio
27	Gordon Hamilton	32	son	Foreman	Ohio
28	Ronald Hamilton	26	Head	Press Operator	Ohio
29	Arlene Hamilton	25	Wife	Tracer	Ohio
30	Bonita Hamilton	4	daughter	—	Ohio
31	Walter Hamilton	36	Head	Die Setter	Ohio
32	Dorothy Hamilton	32	Wife	—	Ohio
33	Eleanor Hamilton	14	daughter	—	Ohio
34	June Marie Hamilton	11	daughter	—	Ohio
35	Ora White	53	Head	Street Work	Ohio
36	Neva White	49	Wife	—	Ohio
37	Clarence White	18	son	Attendant	Ohio
38	Kenneth White	16	son	Pin Setter	Ohio
39	Gloria White	14	daughter	—	Ohio
40	Marie Ernst	56	Head	—	Ohio

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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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