JN
John Novak — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Novak across the 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 11-person household.
Age 14
b. ~1916
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| 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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| David Novak | Son | — | 7 | ~1923 |
| Joseph Novak | Son | — | 10 | ~1920 |
| Joseph Novak | Head | — | 46 | ~1884 |
| Irene Novak | Daughter | — | 4 | ~1926 |
| John Novak | Son | — | 14 | ~1916 |
| Elizabeth Novak | Daughter | — | 1 | ~1929 |
| Julia Novak | Daughter | — | 15 | ~1915 |
| Victoria Novak | Spouse | — | 42 | ~1888 |
| George Novak | Son | — | 9 | ~1921 |
| Andrew Novak | Son | — | 20 | ~1910 |
| Stephen Novak | Son | — | 11 | ~1919 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 11 household members
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novacko |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Logans Ferry |
| 1935 Residence (County) | Allegheny |
| Occupation | bookkeeper |
| Industry | retail store |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 525 |
| Highest Grade | Hs 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 John Novak across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Novak
Son · 1930 · age 14 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
Joseph Novak
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Novak
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Novak
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Novak
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Novak
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen Novak
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Novak
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Novak
Sibling · 1930 · age 9
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1979:0946)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph M Novak | 46 | Head | Laborer | Poland |
| 52 | Victoria Novak | 42 | Wife | — | Poland |
| 53 | Andrew Novak | 20 | Son | Laborer | Illinois |
| 54 | Julia Novak | 15 | Daughter | — | Pennsylvania |
| 55 | John Novak THIS PERSON | 14 | Son | — | Pennsylvania |
| 56 | Joseph Novak | 10 | Son | — | Pennsylvania |
| 57 | Stephen Novak | 11 | Son | — | Pennsylvania |
| 58 | George Novak | 9 | Son | — | Pennsylvania |
| 59 | David Novak | 7 | Son | — | Pennsylvania |
| 60 | Irene Novak | 4 | Daughter | — | Pennsylvania |
| 61 | Elizabeth Novak | 1 | Daughter | — | Pennsylvania |
| 62 | John Stefanic | 50 | Head | Laborer | Czechoslovakia |
| 63 | Antoinette Stefanic | 58 | Wife | — | Poland |
| 64 | John Stefanic | 26 | Son | Laborer | Pennsylvania |
| 65 | Stephen Stefanic | 20 | Son | Butcher Helper | Pennsylvania |
| 66 | Louis Stefanic | 18 | Son | Laborer | Pennsylvania |
| 67 | Joseph Schultz | 50 | Head | Laborer | Poland |
| 68 | Agnes Schultz | 45 | Wife | — | Poland |
| 69 | Anna Schultz | 16 | Daughter | — | Pennsylvania |
| 70 | John Schultz | 14 | Son | — | Pennsylvania |
| 71 | Catharine Schultz | 12 | Daughter | — | Pennsylvania |
| 72 | Frank Schultz | 11 | Son | — | Pennsylvania |
| 73 | Andrew Milaniak | 45 | Head | Laborer | Poland |
| 74 | Emma Milaniak | 40 | Wife | — | Poland |
| 75 | Andrew Milaniak | 8 | Son | — | Pennsylvania |
| 76 | John Milaniak | 6 | Son | — | Pennsylvania |
| 77 | Elizabeth Milaniak | 4 | Daughter | — | Pennsylvania |
| 78 | Joseph Milaniak | 1 | Son | — | Pennsylvania |
| 79 | Stephen Federo | 21 | Boarder | Laborer | New Jersey |
| 80 | George Heredac | 55 | Head | Foreman | Yugoslavia |
| 81 | Mary Heredac | 49 | Wife | — | Yugoslavia |
| 82 | Teresia Heredac | 24 | Daughter | Packing Girl | Pennsylvania |
| 83 | Peter Heredac | 22 | Son | Laborer | Pennsylvania |
| 84 | Mary Heredac | 20 | Daughter | Washwoman | Pennsylvania |
| 85 | Albert Heredac | 15 | Son | — | Pennsylvania |
| 86 | Nicolaus Heredac | 15 | Son | — | Pennsylvania |
| 87 | Francis Heredac | 13 | Daughter | — | Pennsylvania |
| 88 | Michael Heredac | 9 | Son | — | Pennsylvania |
| 89 | Theresia Heredac | 9 | Daughter | — | Pennsylvania |
| 90 | Jacob Vojtash | 42 | Head | Chipper | Czechoslovakia |
| 91 | Verona Vojtash | 40 | Wife | — | Czechoslovakia |
| 92 | Mary Vojtash | 14 | Daughter | — | Ohio |
| 93 | Veronica Vojtash | 13 | Daughter | — | Pennsylvania |
| 94 | Jacob Jr. Vojtash | 11 | Son | — | Pennsylvania |
| 95 | Sofia Vojtash | 10 | Daughter | — | Pennsylvania |
| 96 | Simeon Vojtash | 7 | Son | — | Pennsylvania |
| 97 | Valent Vojtash | 5 | Son | — | Pennsylvania |
| 98 | Elizabeth Vojtash | 3 | Daughter | — | Pennsylvania |
| 99 | Nicola Dielin | 59 | Head | Laborer | Yugoslavia |
| 100 | Francis Dielin | 59 | Wife | — | Yugoslavia |
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)