MN
Mary Novak — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this Mary Novak across the 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Donora Boro |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Donora Boro |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Novak | Daughter | — | 24 | ~1916 |
| Josephine Novak | Daughter | — | 20 | ~1920 |
| Catherine Novak | Daughter | — | 16 | ~1924 |
| John Novak | Head | — | 50 | ~1890 |
| Louise Novak | Spouse | — | 42 | ~1898 |
| Stanley Novak | Son | — | 22 | ~1918 |
Census Appearances
1920
Washington, Pennsylvania
Daughter, age 4
Washington, Pennsylvania · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Poland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Daughter, age 14
Washington, Pennsylvania · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Poland |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Daughter, age 24
Washington-County, Pennsylvania · implied b. ~1916 — 6 household members
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Donora Boro |
| 1935 Residence (County) | Washington |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 2 locations, using XGBoost record linkage. Identified parents: father John Novak (~0.92 confidence) and father John Novak (~0.92 confidence) and mother Louise Novak (~0.92 confidence) and mother Louise Novak (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Novak
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Novak
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Louise Novak
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Louise Novak
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Novak
Daughter · 1940 · age 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
Stanley Novak
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Novak
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Novak
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03622-00670)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Laverne Mcnarney | 28 | Daughter | — | Pennsylvania |
| 42 | Betty Jo Van Dyke | 11 | Daughter | — | Pennsylvania |
| 43 | Thomas Mcnarney | 27 | Son-in-law | Furnace Operat. | West Virginia |
| 44 | Judith Mcnarney | 0 | Grand Daughter | — | Pennsylvania |
| 45 | Harry Campbell | 46 | Head | Stationary Engr. | Pennsylvania |
| 46 | Agnes Campbell | 37 | Wife | — | Pennsylvania |
| 47 | Ronald Campbell | 5 | Son | — | Pennsylvania |
| 48 | Albert A. Ruth | 57 | Head | Stationary Engineer | West Virginia |
| 49 | Emma Ruth | 50 | Wife | — | Michigan |
| 50 | Hazel Ruth | 22 | Daughter | Teacher | Pennsylvania |
| 51 | Howard Ruth | 18 | Son | New Worker | Pennsylvania |
| 52 | John Kasick | 29 | Head | Wire Drawer | Pennsylvania |
| 53 | Mary Kasick | 28 | Wife | — | Pennsylvania |
| 54 | Eleanor Kasick | 7 | Daughter | — | Pennsylvania |
| 55 | Joan Kasick | 5 | Daughter | — | Pennsylvania |
| 56 | James Chadwick | 52 | Head | Electrical Lineman | Pennsylvania |
| 57 | Eileen Chadwick | 51 | Wife | — | Pennsylvania |
| 58 | Ethel Chadwick | 19 | Daughter | New Worker | Pennsylvania |
| 59 | James Jr. Chadwick | 26 | Son | New Worker | Pennsylvania |
| 60 | Arnold Chadwick | 19 | Son | New Worker | Pennsylvania |
| 61 | Charles Tefft | 37 | Head | Teacher | Pennsylvania |
| 62 | Coraline Tefft | 38 | Wife | — | Pennsylvania |
| 63 | Nancy Tefft | 0 | Daughter | 0 | Pennsylvania |
| 64 | Louis Rusa | 38 | Head | Pipe Fitter | Pennsylvania |
| 65 | Fanny Rusa | 37 | Wife | — | Pennsylvania |
| 66 | Leanora Rusa | 14 | Daughter | — | Pennsylvania |
| 67 | Louis Rusa | 12 | Son | — | Pennsylvania |
| 68 | Robert Rusa | 9 | Son | — | Pennsylvania |
| 69 | Deforest Mcdonald | 44 | Head | Wire Chief | Pennsylvania |
| 70 | Catharine Mcdonald | 44 | Wife | — | Pennsylvania |
| 71 | Donald Mcdonald | 21 | Son | Electrician Apprentice | Pennsylvania |
| 72 | Betty Mcdonald | 19 | Daughter | New Worker | Pennsylvania |
| 73 | Ruth Mcdonald | 18 | Daughter | New Worker | Pennsylvania |
| 74 | George Mcdonald | 16 | Son | — | Pennsylvania |
| 75 | John Novak | 50 | Head | Laborer | Poland |
| 76 | Louise Novak | 42 | Wife | — | Pennsylvania |
| 77 | Mary Novak THIS PERSON | 24 | Daughter | — | Pennsylvania |
| 78 | Stanley Novak | 22 | Son | Turner | Pennsylvania |
| 79 | Josephine Novak | 20 | Daughter | New Worker | Pennsylvania |
| 80 | Catherine Novak | 16 | Daughter | — | Pennsylvania |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)