MN
Mary Novak — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Novak across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Female
Spouse
Born: Slovakia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Slovakia |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | slovakia |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1892 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Novak | Son | — | 21 | ~1919 |
| Michael Novak | Son | — | 25 | ~1915 |
| Edward Novak | Son | — | 14 | ~1926 |
| Mary Novak | Spouse | — | 48 | ~1892 |
| Michael Novak | Head | — | 52 | ~1888 |
Census Appearances
1920
Washington, Pennsylvania
Spouse, age 24
Washington, Pennsylvania · implied b. ~1896 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Slovakia |
| Father's Birthplace | Slovakia |
| Mother's Birthplace | Slovakia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Slovak |
| Birthplace (normalized) | slovakia |
1930
Allegheny, Pennsylvania
Other, age 35
Allegheny, Pennsylvania · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Slovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1909 |
| Age at First Marriage | 18 |
| Father's Birthplace | Slovakia |
| Mother's Birthplace | Slovakia |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Birthplace (normalized) | slovakia |
1940
Allegheny-County, Pennsylvania
Spouse, age 48
Allegheny-County, Pennsylvania · implied b. ~1892 — 5 household members
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Slovakia |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | 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 Novak across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Novak
Spouse · 1940 · age 48 · b. ~1892 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
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1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03665-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lawrence Murphy | 51 | Head | Roller | Pennsylvania |
| 42 | Louise Murphy | 59 | Wife | — | Pennsylvania |
| 43 | Eileen Murphy | 30 | Daughter | Bookkeeper | Pennsylvania |
| 44 | Howard Murphy | 27 | Son | Labor | Pennsylvania |
| 45 | Elizabeth Zimmerman | 72 | Head | — | Pennsylvania |
| 46 | Katherine Hendrickson | 70 | Sister | — | Pennsylvania |
| 47 | Mary Matthews | 45 | Head | — | Pennsylvania |
| 48 | John Matthews | 20 | Son | New Worker | Pennsylvania |
| 49 | William Matthews | 5 | Son | — | Pennsylvania |
| 50 | Clara Hoppa | 19 | Daughter | — | Pennsylvania |
| 51 | Thomas Gjundjich | 51 | Head | Labor | Austria |
| 52 | Draga Gjundjich | 51 | Wife | — | Austria |
| 53 | Mary Gjundjich | 23 | Daughter | Dish Washer | Pennsylvania |
| 54 | Anka Gjundjich | 19 | Daughter | Maid | Pennsylvania |
| 55 | Dorothy Gjundjich | 9 | Daughter | — | Pennsylvania |
| 56 | Leonard Lindner | 52 | Head | Paper Cutter | Pennsylvania |
| 57 | Marie Lindner | 46 | Wife | — | Pennsylvania |
| 58 | Clarence Lindner | 22 | Son | Errand Boy | Pennsylvania |
| 59 | Robert Lindner | 14 | Son | — | Pennsylvania |
| 60 | Albert Stewart | 22 | Head | Path Man | Pennsylvania |
| 61 | Alffetta Stewart | 23 | Wife | — | Pennsylvania |
| 62 | Paul Kiefer | 37 | Head | Labor | Pennsylvania |
| 63 | Cecelia Kiefer | 40 | Wife | — | Germany |
| 64 | Paul F. Kiefer | 12 | Son | — | Pennsylvania |
| 65 | Loretta C. Kiefer | 10 | Daughter | — | Pennsylvania |
| 66 | Michael Novak | 52 | Head | Labor | Slovakia |
| 67 | Mary Novak THIS PERSON | 48 | Wife | — | Slovakia |
| 68 | Michael Jr. Novak | 25 | Son | New Worker | Pennsylvania |
| 69 | Joseph Novak | 21 | Son | New Worker | Pennsylvania |
| 70 | Edward Novak | 14 | Son | — | Pennsylvania |
| 71 | John Sopata | 53 | Head | Crane Operator | Slovakia |
| 72 | Mary Sopata | 48 | Wife | — | Slovakia |
| 73 | Helen B. Sopata | 16 | Daughter | — | Pennsylvania |
| 74 | Dolores Sopata | 10 | Daughter | — | Pennsylvania |
| 75 | John Jurgovsky | 48 | Head | Labor | Slovakia |
| 76 | Mary Jurgovsky | 44 | Wife | — | Slovakia |
| 77 | John Jr. Jurgovsky | 21 | Son | Electrician | Pennsylvania |
| 78 | Charles Jurgovsky | 20 | Son | New Worker | Pennsylvania |
| 79 | Sophia Jurgovsky | 17 | Daughter | Maid | Pennsylvania |
| 80 | Mary Jurgovsky | 16 | Daughter | — | Pennsylvania |
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)