MK
Mary Kovach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Pennsylvania
Our Model Tree links this Mary Kovach across the 1930 and 1940 US Censuses in Monroe-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 8-person household.
Age 42
b. ~1898
Female
Spouse
Born: Austria
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Pennsylvania |
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Tobyhanna |
| 1935 Residence (County) | Monroe |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Township / Ward | Tobyhanna |
| Est. Birth Year | ~1898 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Kovach | Son | — | 18 | ~1922 |
| Stephen Kovach | Son | — | 21 | ~1919 |
| Michael Kovach | Son | — | 11 | ~1929 |
| John Kovach | Son | — | 7 | ~1933 |
| Helen Kovach | Daughter | — | 14 | ~1926 |
| Stephen Kovach | Head | — | 46 | ~1894 |
| Rosella Kovach | Daughter | — | 16 | ~1924 |
| Mary Kovach | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Northampton, Pennsylvania
Other, age 33
Northampton, Pennsylvania · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kovacs |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Alien |
| Year of Immigration | 1914 |
| Age at First Marriage | 21 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | NONE |
| Can Read/Write | Yes |
| Mother Tongue | Hungarian |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Monroe-County, Pennsylvania
Spouse, age 42
Monroe-County, Pennsylvania · implied b. ~1898 — 8 household members
| Surname | Kovach |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Tobyhanna |
| 1935 Residence (County) | Monroe |
| Naturalization Status | Naturalized |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| 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 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 · 1940 · age 42 · b. ~1898 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Monroe-County, Pennsylvania
Open full size
1940 US Federal Census — Monroe-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03575-00094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J. D. Frankenfield | 45 | Head | Chef | Penna |
| 2 | Sylvia Frankenfield | 46 | Wife | — | Penna |
| 3 | Elsie Frankenfield | 21 | Daughter | Chef'S Helper | Penna |
| 4 | Isabelle Frankenfield | 18 | Daughter | — | Penna |
| 5 | Janet Frankenfield | 17 | Daughter | — | Penna |
| 6 | Blaine Frankenfield | 15 | Daughter | — | Penna |
| 7 | Fay Frankenfield | 13 | Daughter | — | Penna |
| 8 | Judith Frankenfield | 1 | Daughter | — | Penna |
| 9 | Anthony Zartosky | 40 | Head | Labor | Penna |
| 10 | Anna Zartosky | 38 | Wife | — | Penna |
| 11 | Anthony Jr Zartosky | 14 | Son | — | Penna |
| 12 | Ann Marie Zartosky | 8 | Daughter | — | Penna |
| 13 | Walter Zartosky | 27 | Lodger | Labor | Penna |
| 14 | Stephen P. Kovach | 46 | Head | Boilermaker | Penna |
| 15 | Mary Kovach THIS PERSON | 42 | Wife | — | Austria |
| 16 | Stephen Jr Kovach | 21 | Son | Labor | Penna |
| 17 | Joseph Kovach | 18 | Son | — | Penna |
| 18 | Rosella Kovach | 16 | Daughter | — | Penna |
| 19 | Helen Kovach | 14 | Daughter | — | Penna |
| 20 | Michael Kovach | 11 | Son | — | Penna |
| 21 | John Kovach | 7 | Son | — | Penna |
| 22 | John J. Barnes | 63 | Head | Boilermaker | New York |
| 23 | Mary Barnes | 59 | Wife | — | Penna |
| 24 | John J. Barnes | 21 | Son | — | Penna |
| 25 | Michael Wash | 51 | Head | Labor | Austria |
| 26 | Catherine Wash | 47 | Wife | — | Austria |
| 27 | Helen Wash | 19 | Daughter | — | Penna |
| 28 | Catherine Wash | 17 | Daughter | — | Penna |
| 29 | Margaret Wash | 15 | Daughter | — | Penna |
| 30 | Michael Wash | 13 | Son | — | Penna |
| 31 | Andrew Wash | 11 | Son | — | Penna |
| 32 | Patrick Wash | 7 | Son | — | Penna |
| 33 | Thomas Wash | 6 | Son | — | Penna |
| 34 | Frank Susko | 65 | Head | Labor | Austria |
| 35 | Annie Susko | 53 | Wife | — | Austria |
| 36 | John Tuluka | 71 | Head | Labor | Austria |
| 37 | George Tuluka | 32 | Son | — | Penna |
| 38 | Julia Tuluka | 26 | Daughter | — | Penna |
| 39 | Morton Quick | 39 | Son-in-law | Mechanic | Penna |
| 40 | Helen Quick | 30 | Daughter | — | Penna |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)