JK
John Kovach — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kings, New York
Our Model Tree links this John Kovach across the 1920 and 1930 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 15-person household.
Age 45
b. ~1885
Male
Head
Born: Austria
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Kings, New York |
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Additional Details | |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Occupation | Laborer |
| Township / Ward | Brooklyn |
| 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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joseph Kovach | Son | — | 4 | ~1926 |
| Elizabeth Kovach | Daughter | — | 8 | ~1922 |
| Mary Kovach | Spouse | — | 40 | ~1890 |
| Anna Kovach | Other | — | 68 | ~1862 |
| Theresa Kovach | Daughter | — | ~1930 | |
| Agnes Kovach | Daughter | — | 2 | ~1928 |
| John Kovach | Head | — | 45 | ~1885 |
| George Kovach | Son | — | 6 | ~1924 |
| Mary Kovach | Daughter | — | 16 | ~1914 |
| Michael Kovach | Other | — | 38 | ~1892 |
| John Kovach | Son | — | 18 | ~1912 |
| Margaret Kovach | Daughter | — | 10 | ~1920 |
| George Kovach | Other | — | 36 | ~1894 |
| Helen Kovach | Daughter | — | 12 | ~1918 |
| Anna Kovach | Daughter | — | 14 | ~1916 |
Census Appearances
1920
New York, …
Other, age 35
New York, New York · implied b. ~1885 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovacs |
| Given Name | John |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Austria |
| Year of Immigration | 1905 |
| Naturalization Status | Alien |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Butcher |
| Industry | Butcher Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | No |
| Mother Tongue | Slovak |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1930
Kings, New …
Head, age 45
Kings, New York · implied b. ~1885 — 15 household members
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 John Kovach across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kovach
Head · 1930 · age 45 · b. ~1885 · New York
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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 — Kings, New York
Open full size
1930 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel187:0103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Staso | 42 | Head | — | Austria |
| 2 | Mary Staso | 38 | Wife | — | Austria |
| 3 | John Staso | 17 | Son | — | Pennsylvania |
| 4 | Mary Staso | 15 | Daughter | — | Pennsylvania |
| 5 | Anna Staso | 13 | Daughter | — | Pennsylvania |
| 6 | Helen Staso | 11 | Daughter | — | Pennsylvania |
| 7 | Margaret Staso | 9 | Daughter | — | Pennsylvania |
| 8 | Elizabeth Staso | 7 | Daughter | — | Pennsylvania |
| 9 | George Staso | 5 | Son | — | Pennsylvania |
| 10 | Joseph Staso | 3 | Son | — | Pennsylvania |
| 11 | Agnes Staso | 1 | Daughter | — | Pennsylvania |
| 12 | Theresa Staso | 0 | Daughter | — | Pennsylvania |
| 13 | Michael Staso | 35 | Brother | — | Austria |
| 14 | George Staso | 33 | Brother | — | Austria |
| 15 | Anna Staso | 65 | Mother | — | Austria |
| 16 | John Kovach THIS PERSON | 45 | Head | Laborer | Austria |
| 17 | Mary Kovach | 40 | Wife | — | Austria |
| 18 | John Kovach | 18 | Son | — | Pennsylvania |
| 19 | Mary Kovach | 16 | Daughter | — | Pennsylvania |
| 20 | Anna Kovach | 14 | Daughter | — | Pennsylvania |
| 21 | Helen Kovach | 12 | Daughter | — | Pennsylvania |
| 22 | Margaret Kovach | 10 | Daughter | — | Pennsylvania |
| 23 | Elizabeth Kovach | 8 | Daughter | — | Pennsylvania |
| 24 | George Kovach | 6 | Son | — | Pennsylvania |
| 25 | Joseph Kovach | 4 | Son | — | Pennsylvania |
| 26 | Agnes Kovach | 2 | Daughter | — | Pennsylvania |
| 27 | Theresa Kovach | 0 | Daughter | — | Pennsylvania |
| 28 | Michael Kovach | 38 | Brother | Laborer | Austria |
| 29 | George Kovach | 36 | Brother | Laborer | Austria |
| 30 | Anna Kovach | 68 | Mother | — | Austria |
| 31 | John Sabo | 48 | Head | Laborer | Austria |
| 32 | Mary Sabo | 44 | Wife | — | Austria |
| 33 | John Sabo | 22 | Son | Laborer | Pennsylvania |
| 34 | Mary Sabo | 20 | Daughter | — | Pennsylvania |
| 35 | Anna Sabo | 18 | Daughter | — | Pennsylvania |
| 36 | Helen Sabo | 16 | Daughter | — | Pennsylvania |
| 37 | Margaret Sabo | 14 | Daughter | — | Pennsylvania |
| 38 | Elizabeth Sabo | 12 | Daughter | — | Pennsylvania |
| 39 | George Sabo | 10 | Son | — | Pennsylvania |
| 40 | Joseph Sabo | 8 | Son | — | Pennsylvania |
| 41 | Agnes Sabo | 6 | Daughter | — | Pennsylvania |
| 42 | Theresa Sabo | 4 | Daughter | — | Pennsylvania |
| 43 | Michael Sabo | 42 | Brother | Laborer | Austria |
| 44 | George Sabo | 40 | Brother | Laborer | Austria |
| 45 | Anna Sabo | 72 | Mother | — | Austria |
| 46 | John Toth | 52 | Head | Laborer | Austria |
| 47 | Mary Toth | 48 | Wife | — | Austria |
| 48 | John Toth | 24 | Son | Laborer | Pennsylvania |
| 49 | Mary Toth | 22 | Daughter | — | Pennsylvania |
| 50 | Anna Toth | 20 | Daughter | — | Pennsylvania |
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)