MK
Mary Kovach — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this Mary Kovach across the 1920 and 1930 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 9-person household.
Age 51
b. ~1879
Female
Spouse
Born: Czecho-Slovakia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Czecho-Slovakia |
| Naturalization Status | Alien |
| Year of Immigration | 1901 |
| Age at First Marriage | 16 |
| Father's Birthplace | Czecho-Slovakia |
| Mother's Birthplace | Czecho-Slovakia |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Birthplace (normalized) | czecho-slovakia |
| Township / Ward | North Bergen Township |
| Est. Birth Year | ~1879 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Kovach | Son | — | 12 | ~1918 |
| George Kovach | Head | — | 58 | ~1872 |
| Helen Kovach | Daughter | — | 13 | ~1917 |
| Anna Kovach | Daughter | — | 16 | ~1914 |
| Margaret Kovach | Daughter | — | 10 | ~1920 |
| Mary Kovach | Spouse | — | 51 | ~1879 |
| John Kovach | Son | — | 20 | ~1910 |
| Elizabeth Kovach | Daughter | — | 18 | ~1912 |
| Charles Kovach | Son | — | 8 | ~1922 |
Census Appearances
1920
New York, …
Spouse, age 39
New York, New York · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovacs |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Czecho-Slovakia |
| Father's Birthplace | Czecho-Slovakia |
| Mother's Birthplace | Czecho-Slovakia |
| Occupation | Cigar Maker |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Slovak |
| Birthplace (normalized) | czecho-slovakia |
1930
Hudson, New …
Spouse, age 51
Hudson, New Jersey · implied b. ~1879 — 9 household members
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Czecho-Slovakia |
| Naturalization Status | Alien |
| Year of Immigration | 1901 |
| Age at First Marriage | 16 |
| Father's Birthplace | Czecho-Slovakia |
| Mother's Birthplace | Czecho-Slovakia |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Birthplace (normalized) | czecho-slovakia |
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 (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kovach
Spouse · 1930 · age 51 · b. ~1879 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1318:0691)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Stephen | 11 | Son | — | New Jersey |
| 52 | John | 11 | Nephew | — | New Jersey |
| 53 | John Beres | 33 | Head | Laborer | Czecho-Slovakia |
| 54 | Ethel Beres | 43 | Wife | — | Russia |
| 55 | George Sandor | 47 | Head | Laborer | Hungary |
| 56 | Mary Sandor | 41 | Wife | — | Hungary |
| 57 | John Sandor | 18 | Son | Helper | New Jersey |
| 58 | George Sandor | 15 | Son | — | New Jersey |
| 59 | Mary Sandor | 12 | Daughter | — | New Jersey |
| 60 | Andrew Bodnar | 42 | Head | Steel Worker | Roumania |
| 61 | Sarah Bodnar | 37 | Wife | — | Roumania |
| 62 | Elizabeth Bodnar | 13 | Daughter | — | New Jersey |
| 63 | Mary Bodnar | 11 | Daughter | — | New Jersey |
| 64 | Andrew Bodnar | 6 | Son | — | New Jersey |
| 65 | Emma Szigeti | 68 | Servant | Housework | Hungary |
| 66 | John Duhon | 48 | Head | Operator | New Jersey |
| 67 | Anna Duhon | 33 | Wife | — | New Jersey |
| 68 | Mary Duhon | 15 | Daughter | — | New Jersey |
| 69 | Alice Duhon | 12 | Daughter | — | New Jersey |
| 70 | John Duhon | 7 | Son | — | New Jersey |
| 71 | Charles Duhon | 4 | Son | — | New Jersey |
| 72 | James Duhon | 1 | Son | — | New Jersey |
| 73 | George Kovach | 58 | Head | Laborer | Czecho-Slovakia |
| 74 | Mary Kovach THIS PERSON | 51 | Wife | — | Czecho-Slovakia |
| 75 | John Kovach | 20 | Son | Laborer | New Jersey |
| 76 | Elizabeth Kovach | 18 | Daughter | — | New Jersey |
| 77 | Anna Kovach | 16 | Daughter | — | New Jersey |
| 78 | Helen Kovach | 13 | Daughter | — | New Jersey |
| 79 | George Kovach | 12 | Son | — | New Jersey |
| 80 | Margaret Kovach | 10 | Daughter | — | New Jersey |
| 81 | Charles Kovach | 8 | Son | — | New Jersey |
| 82 | Gabriel Andres | 68 | Head | — | Hungary |
| 83 | George Andres | 31 | Son | Laborer | New Jersey |
| 84 | Joseph Long | 27 | Head | Laborer | New Jersey |
| 85 | Mary Long | 22 | Wife | — | New Jersey |
| 86 | George Picon | 41 | Head | Operator | Hungary |
| 87 | Mary Picon | 40 | Wife | — | Hungary |
| 88 | George Picon | 19 | Son | Laborer | New Jersey |
| 89 | Helen Picon | 17 | Daughter | — | New Jersey |
| 90 | Thomas Veres | 41 | Head | Laborer | Roumania |
| 91 | Mary Veres | 38 | Wife | — | Roumania |
| 92 | John Veres | 17 | Son | — | New Jersey |
| 93 | Mary Veres | 12 | Daughter | — | New Jersey |
| 94 | Elizabeth Veres | 10 | Daughter | — | New Jersey |
| 95 | George Veres | 8 | Son | — | New Jersey |
| 96 | Louis Veres | 38 | Head | Laborer | Roumania |
| 97 | Florence Veres | 33 | Wife | — | Roumania |
| 98 | Louis Veres | 4 | Son | — | New Jersey |
| 99 | Frank Brosson | 48 | Head | Laborer | Yugoslavia |
| 100 | Mary Brosson | 42 | Wife | — | Roumania |
Related Census Records
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)