Emma Martin — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Ottawa-County, Ohio

Our Model Tree links this Emma Martin across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 3-person household.

Age 55 b. ~1885 Female Spouse Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Ottawa-County, Ohio
Surname	Martin
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	R
1935 Residence (County)	Ottawa
Additional Details
Industry	0
Highest Grade	8
1935 Residence	Ohio
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Harris Township
Est. Birth Year	~1885

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 Emma	Age	Birth yr
John Martin	Head	—	75	~1865
Roland Martin	Son	—	23	~1917
Emma Martin	Spouse	—	55	~1885

Census Appearances

1920

Ottawa, Ohio

Spouse, age 35

Ottawa, Ohio · implied b. ~1885 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Ottawa, Ohio

Other, age 45

Ottawa, Ohio · implied b. ~1885 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Emma
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	23
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Ottawa-County, Ohio

Spouse, age 55

Ottawa-County, Ohio · implied b. ~1885 — 3 household members

Surname	Martin
Given Name	Emma
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	R
1935 Residence (County)	Ottawa
Industry	0
Highest Grade	8
1935 Residence	Ohio
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Emma Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Emma Martin

Spouse · 1940 · age 55 · b. ~1885 · 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 — Ottawa-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03125-00398)

Line	Name	Age	Relation	Occupation	Birthplace
1	Son Ronald	None	M	—	—
2	Judith Ann Ronald	0	Daughter	—	Ohio
3	Joe Helman	31	Head	Chauffeur	Ohio
4	Florence Helman	18	Wife	—	Ohio
5	Wallace Christian	46	Head	Molder	Kentucky
6	Ruth Christian	33	Wife	—	West Va
7	Oscar Christian	15	Son	—	Ohio
8	Donald Christian	9	Son	—	Ohio
9	Drena Christian	7	Daughter	—	Ohio
10	Matilda Ames	88	Head	—	Ohio
11	Henry Dietz	50	Head	Crusher Operator	Ohio
12	Mata Dietz	50	Wife	—	Ohio
13	Amelia Paris	54	Head	—	Ohio
14	Norman Paris	27	Son	Salesman	Ohio
15	Helen Paris	22	Daughter	Tacker Basket	Ohio
16	John L. Martin	75	Head	—	Ohio
17	Emma Martin THIS PERSON	55	Wife	—	Ohio
18	Roland Martin	23	Son	Truck Driver	Ohio
19	Frederick Kovach	30	Head	Molder	Kentucky
20	Melda Kovach	28	Wife	—	Ohio
21	Harry Kovach	6	Son	—	Ohio
22	Neil Kovach	2	Son	—	Ohio
23	Carl Blausey	66	Head	General Farmer	Germany
24	Augusta Blausey	61	Wife	—	Germany
25	Henry Sampson	36	Head	Millwright	Ohio
26	Helen Sampson	34	Wife	—	Ohio
27	Donald Sampson	13	Son	—	Ohio
28	Carolyn Sampson	4	Daughter	—	Ohio
29	Loren Sampson	1	Son	—	Ohio
30	Clarence Dischinger	35	Head	General Farmer	Ohio
31	Adah Dischinger	34	Wife	—	Ohio
32	Clara Dischinger	66	Mother	—	Ohio
33	Betty Niemeyer	10	Niece	—	Ohio
34	Otto Meyer	47	Head	General Farmer	Ohio
35	Argella Meyer	42	Wife	—	Ohio
36	James Meyer	23	Son	General Farmer	Ohio
37	John Meyer	20	Son	General Farmer	Ohio
38	Howard Meyer	16	Son	—	Ohio
39	Phyllis Meyer	15	Daughter	—	Ohio
40	Paul Meyer	12	Son	—	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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