MK
Mary Kovach — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Summit, Ohio
Our Model Tree links this Mary Kovach across the 1930 and 1940 US Censuses in Summit, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 7
b. ~1923
Female
Daughter
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Summit, Ohio |
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Akron City |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Anna Kovach | Daughter | — | 15 | ~1915 |
| Julia Kovach | Spouse | — | 38 | ~1892 |
| James Kovach | Head | — | 45 | ~1885 |
| Elizabeth Kovach | Daughter | — | 9 | ~1921 |
| Charles Kovach | Son | — | 18 | ~1912 |
| Margaret Kovach | Daughter | — | 11 | ~1919 |
| James Kovach | Son | — | 19 | ~1911 |
| Mary Kovach | Daughter | — | 7 | ~1923 |
Census Appearances
1930
Summit, Ohio
Daughter, age 7
Summit, Ohio · implied b. ~1923 — 8 household members
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Summit-County, Ohio
Spouse, age 18
Summit-County, Ohio · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovach |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Akron City |
| 1935 Residence (County) | Summit |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Kovach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kovach
Daughter · 1930 · age 7 · b. ~1923 · Ohio
★ You are viewing this record
Sibling
Anna Kovach
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kovach
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Kovach
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Kovach
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Kovach
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Summit, Ohio
Open full size
1930 US Federal Census — Summit, Ohio
Page Contents
48 people indexed on this census page (ia:1930:ohiocensus00reel1880:0880)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Hozovich | 17 | Head | — | Ohio |
| 2 | Anna Hozovich | 14 | Daughter | — | Ohio |
| 3 | Frank Horvath | 51 | Head | Millwright | Hungary |
| 4 | Julia Horvath | 47 | Wife | — | Hungary |
| 5 | Frank Jr. Horvath | 25 | Son | Repairman | Hungary |
| 6 | John Horvath | 22 | Son | Assembler | Hungary |
| 7 | Steve Horvath | 21 | Son | Clerk | Ohio |
| 8 | Joe Horvath | 18 | Son | Helper | Ohio |
| 9 | Julia Horvath | 17 | Daughter | Housework | Ohio |
| 10 | Edward Zykuczewski | 36 | Head | Tire Maker | Poland |
| 11 | Sophia Zykuczewski | 29 | Wife | — | Poland |
| 12 | Eleanor Zykuczewski | 7 | Daughter | — | Ohio |
| 13 | Betty A. Zykuczewski | 6 | Daughter | — | Ohio |
| 14 | James B. Allen | 45 | Head | Tire Maker | West Virginia |
| 15 | Laura M. Allen | 36 | Wife | — | Ohio |
| 16 | Patrick H. Turner | 27 | Head | Operator | Texas |
| 17 | Beulah M. Turner | 28 | Wife | — | Ohio |
| 18 | Daniel Speck | 37 | Head | Tire Finisher | Czecho Slovakia |
| 19 | Emma Speck | 32 | Wife | — | Czecho Slovakia |
| 20 | Mary Speck | 13 | Daughter | — | Ohio |
| 21 | Anna Speck | 12 | Daughter | — | Ohio |
| 22 | Emma Speck | 10 | Daughter | — | Ohio |
| 23 | Rosa Speck | 8 | Daughter | — | Ohio |
| 24 | George Speck | 6 | Son | — | Ohio |
| 25 | Daniel Speck | 1 | Son | — | Ohio |
| 26 | George Legats | 41 | Head | Hostler | Austria |
| 27 | Anna Legats | 40 | Wife | — | Austria |
| 28 | Louis Legats | 15 | Son | — | Illinois |
| 29 | Mary Legats | 14 | Daughter | — | Illinois |
| 30 | Eloise Legats | 12 | Daughter | — | Ohio |
| 31 | Katie Legats | 10 | Daughter | — | Ohio |
| 32 | John Stahl | 31 | Head | Cementing | Hungary |
| 33 | Julia Stahl | 22 | Wife | — | Hungary |
| 34 | Esther Stahl | 64 | Mother | — | Hungary |
| 35 | Fred Heiselman Jr. | 41 | Head | Miner | Austria |
| 36 | Mary Heiselman Jr. | 47 | Wife | — | Austria |
| 37 | Helen Heiselman Jr. | 15 | Daughter | — | Ohio |
| 38 | Carl Heiselman Jr. | 14 | Son | — | Ohio |
| 39 | James Kovach | 45 | Head | Reclaimer | Hungary |
| 40 | Julia Kovach | 38 | Wife | — | Ohio |
| 41 | James Jr. Kovach | 19 | Son | Painter | Pennsylvania |
| 42 | Charles Kovach | 18 | Son | Upholsterer | Ohio |
| 43 | Anna Kovach | 15 | Daughter | — | Ohio |
| 44 | Margaret Kovach | 11 | Daughter | — | Ohio |
| 45 | Elizabeth Kovach | 9 | Daughter | — | Ohio |
| 46 | Mary Kovach THIS PERSON | 7 | Daughter | — | Ohio |
| 47 | Harry Dickey | 24 | Head | Foreman | Ohio |
| 48 | Winnie Dickey | 29 | Wife | — | Texas |
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)