JK
John Kovach — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cambria, Pennsylvania
Our Model Tree links this John Kovach across the 1910, 1920 and 1930 US Censuses in Cambria, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 47
b. ~1883
Male
Head
Born: Austria
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cambria, Pennsylvania |
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 27 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Additional Details | |
| Occupation | Coal loader |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Occupation | Coal Loader |
| Township / Ward | Nanty Glo Borough |
| Est. Birth Year | ~1883 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Steve Kovach | Son | — | 14 | ~1916 |
| Mary Kovach | Spouse | — | 48 | ~1882 |
| John Kovach | Head | — | 47 | ~1883 |
| Elizabeth Kovach | Daughter | — | 16 | ~1914 |
Census Appearances
1910
Luzerne, Pennsylvania
Head, age 29
Luzerne, Pennsylvania · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Austria |
| Years Married | 3 |
| Year of Immigration | 1901 |
| Naturalization Status | Alien |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Worker |
| Industry | Steel Yard |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1920
Cambria, Pennsylvania
Head, age 38
Cambria, Pennsylvania · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Austria |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Slovak |
| Home Owned/Rented | R |
| Birth Country | Austria |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | austria |
1930
Cambria, Pennsylvania
Head, age 47
Cambria, Pennsylvania · implied b. ~1883 — 4 household members
| Surname | Kovach |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 27 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Coal loader |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| 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 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kovach
Head · 1930 · age 47 · b. ~1883 · Pennsylvania
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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 — Cambria, Pennsylvania
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1930 US Federal Census — Cambria, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2013:0386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew Molnar | 36 | Head | Coal Loader | Austria |
| 2 | Elizabeth Molnar | 31 | Wife | None | Austria |
| 3 | Helen Molnar | 8 | Daughter | None | Pennsylvania |
| 4 | John Molnar | 6 | Son | None | Pennsylvania |
| 5 | Ethel Molnar | 1 | Daughter | None | Pennsylvania |
| 6 | Ernest Molnar | 1 | Son | None | Pennsylvania |
| 7 | Ralph Wagner | 26 | Head | Truck Driver | Pennsylvania |
| 8 | Nora Wagner | 25 | Wife | None | Pennsylvania |
| 9 | Ralph Jr. Wagner | 4 | Son | None | Pennsylvania |
| 10 | Lois Wagner | 2 | Daughter | None | Pennsylvania |
| 11 | John Wagner | 0 | Son | None | Pennsylvania |
| 12 | John Bobby | 30 | Head | Coal Loader | Pennsylvania |
| 13 | Mary Bobby | 27 | Wife | None | Austria |
| 14 | John Jr. Bobby | 8 | Son | None | Pennsylvania |
| 15 | Dorothy Bobby | 6 | Daughter | None | Pennsylvania |
| 16 | Beatrice Bobby | 4 | Daughter | None | Pennsylvania |
| 17 | Margaret Bobby | 2 | Daughter | None | Pennsylvania |
| 18 | George Taskey | 65 | Head | None | Austria |
| 19 | Mary Taskey | 66 | Wife | None | Austria |
| 20 | Joseph Taskey | 30 | Son | Proprietor | Pennsylvania |
| 21 | John Kovach THIS PERSON | 47 | Head | Coal Loader | Austria |
| 22 | Mary Kovach | 48 | Wife | None | Austria |
| 23 | Elizabeth Kovach | 16 | Daughter | None | Pennsylvania |
| 24 | Steve Kovach | 14 | Son | None | Pennsylvania |
| 25 | John Vross | 61 | Head | None | Austria |
| 26 | Michael Byich | 25 | Boarder | Coal Loader | Austria |
| 27 | Jasper Roman | 45 | Boarder | Coal Loader | Austria |
| 28 | Nilo Hill | 47 | Head | Coal Loader | Finland |
| 29 | Alma Hill | 42 | Wife | None | Finland |
| 30 | Elma Hill | 13 | Daughter | None | Pennsylvania |
| 31 | Anna Hill | 8 | Daughter | None | Pennsylvania |
| 32 | Anna Marcinko | 53 | Head | None | Austria |
| 33 | Michael Marcinko | 31 | Son | Coal Loader | Pennsylvania |
| 34 | John Marcinko | 22 | Son | Coal Loader | Pennsylvania |
| 35 | Paul Marcinko | 17 | Son | None | Pennsylvania |
| 36 | Ernest Bartis | 48 | Head | Coal Loader | Italy |
| 37 | Elizabeth Bartis | 48 | Wife | None | Italy |
| 38 | Irma Bartis | 23 | Daughter | Coal Loader | Italy |
| 39 | Irma Bartis | 19 | Daughter | None | Pennsylvania |
| 40 | Francis Bartis | 12 | Daughter | None | Pennsylvania |
| 41 | Madeline Lewis | 25 | Head | None | Pennsylvania |
| 42 | John Anderson | 31 | Boarder | Coal Loader | Sweden |
| 43 | Kenneth Dawson | 28 | Boarder | Coal Loader | Pennsylvania |
| 44 | William Lewis | 6 | Son | None | Pennsylvania |
| 45 | Robert Lewis | 4 | Son | None | Pennsylvania |
| 46 | Betty Lewis | 1 | Daughter | None | Pennsylvania |
| 47 | Lucy Solar | 48 | Head | None | Italy |
| 48 | Tony Solar | 24 | Son | None | Pennsylvania |
| 49 | Tena Solar | 19 | Daughter | None | Pennsylvania |
| 50 | William Solar | 17 | Son | None | 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)