Mary Kovach — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Lorain, Ohio

Our Model Tree links this Mary Kovach across the 1930 and 1940 US Censuses in Lorain, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 8-person household.

Age 39 b. ~1891 Female Spouse Born: Yugoslavia Married

1930 Census Record Details

Census Year	1930
Location	Lorain, Ohio
Surname	Kovach
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Yugoslavia
Naturalization Status	Alien
Year of Immigration	1908
Age at First Marriage	18
Father's Birthplace	Yugoslavia
Mother's Birthplace	Yugoslavia
Additional Details
Can Read/Write	Yes
Mother Tongue	Croatian
Birth Country	Yugoslavia
Birthplace (normalized)	yugoslavia
Township / Ward	Lorain City
Est. Birth Year	~1891

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.

8 people recorded at the same address in the 1930 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Kovach	Daughter	—	19	~1911
Helen Kovach	Daughter	—	11	~1919
Nick Kovach	Head	—	39	~1891
Steve Kovach	Son	—	5	~1925
Anna Kovach	Daughter	—	14	~1916
George Kovach	Son	—	13	~1917
Mary Kovach	Spouse	—	39	~1891
Katie Kovach	Daughter	—	8	~1922

Census Appearances

1930

Lorain, Ohio

Spouse, age 39

Lorain, Ohio · implied b. ~1891 — 8 household members

Surname	Kovach
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Yugoslavia
Naturalization Status	Alien
Year of Immigration	1908
Age at First Marriage	18
Father's Birthplace	Yugoslavia
Mother's Birthplace	Yugoslavia
Can Read/Write	Yes
Mother Tongue	Croatian
Birth Country	Yugoslavia
Birthplace (normalized)	yugoslavia

1940

Lorain-County, Ohio

Spouse, age 54

Lorain-County, Ohio · implied b. ~1886 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kovacs
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Yugoslavia
1935 Residence (City)	Lorain
1935 Residence (County)	Lorain
Naturalization Status	Alien
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same place
Birth Country	Yugoslavia
Birthplace (normalized)	yugoslavia

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Kovach

Spouse · 1930 · age 39 · b. ~1891 · Ohio

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1930 US Federal Census — Lorain, Ohio Open full size

Page Contents

50 people indexed on this census page (ia:1930:ohiocensus00reel1830:1100)

Line	Name	Age	Relation	Occupation	Birthplace
1	Frank Zehel	51	Head	Inspector	Yugoslavia
2	Mary Zehel	47	Wife	—	Yugoslavia
3	Charles A. Zehel	22	Son	Teamster	New York
4	Victor Zehel	19	Son	Stock Boy	New York
5	Albert R. Zehel	16	Son	—	New York
6	Emma Zehel	14	Daughter	—	New York
7	Edward B. Zehel	10	Son	—	Ohio
8	Frank M. Read	30	Head	Machinist	Pennsylvania
9	Mary F. Read	23	Wife	—	New York
10	Dorothy M. Read	4	Daughter	—	Ohio
11	Mike Berkes	47	Head	Laborer	Hungary
12	Elizabeth Berkes	36	Wife	—	Hungary
13	John Berkes	13	Son	—	Ohio
14	Mike Berkes	10	Son	—	Ohio
15	Billie W. Berkes	5	Son	—	Ohio
16	John Hamko	60	Head	Laborer	Czechoslovakia
17	Mary Hamko	50	Wife	—	Czechoslovakia
18	Steve Kovach	33	Head	Foreman	Ohio
19	Mary Kovach	23	Wife	—	Ohio
20	Steve Kovach	3	Son	—	Ohio
21	Steve Phillips	43	Head	Operator Table	Czechoslovakia
22	Mary Phillips	36	Wife	—	Czechoslovakia
23	Margaret Phillips	17	Daughter	Saleslady	Ohio
24	Yolanda Phillips	15	Daughter	—	Ohio
25	Steve Phillips	13	Son	—	Ohio
26	Sidney Phillips	11	Son	—	Ohio
27	Irene Phillips	10	Daughter	—	Ohio
28	Nick Kovach	39	Head	Laborer	Yugoslavia
29	Mary Kovach THIS PERSON	39	Wife	—	Yugoslavia
30	Mary Kovach	19	Daughter	Saleslady	Pennsylvania
31	Anna Kovach	14	Daughter	—	Ohio
32	George Kovach	13	Son	—	Ohio
33	Helen Kovach	11	Daughter	—	Ohio
34	Katie Kovach	8	Daughter	—	Ohio
35	Steve Kovach	5	Son	—	Ohio
36	Emery Ragh	51	Head	Carpenter	Hungary
37	Elizabeth Ragh	47	Wife	—	Hungary
38	Elmer Ragh	19	Son	Repairer	Hungary
39	Emery Ragh	17	Son	—	Ohio
40	Emery Varga	27	Head	Laborer	Hungary
41	Elizabeth Varga	21	Wife	—	Ohio
42	Joe Kassai	70	Head	Retired	Czechoslovakia
43	Theresa Kassai	66	Wife	—	Czechoslovakia
44	Frank Kovacs	36	Head	Machinist	Czechoslovakia
45	Rosalie Kovacs	30	Wife	Seamstress	Czechoslovakia
46	Richard Kovacs	11	Son	—	New York
47	Ernest Kovacs	9	Son	—	New York
48	Mary A. Kovacs	6	Daughter	—	Ohio
49	John Kovacs	27	Head	Laborer	Czechoslovakia
50	Mary Kovacs	18	Wife	—	Ohio

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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