MN
Mary Novak — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bucks-County, Pennsylvania
Our Model Tree links this Mary Novak across the 1930 and 1940 US Censuses in Bucks-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 12-person household.
Age 39
b. ~1901
Female
Spouse
Born: Jugoslavia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bucks-County, Pennsylvania |
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Jugoslavia |
| 1935 Residence (City) | Springfield Twp |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | jugoslavia |
| Township / Ward | Springfield Twp |
| Est. Birth Year | ~1901 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gloria Novak | Daughter | — | 5 | ~1935 |
| Steve Novak | Son | — | 3 | ~1937 |
| Anna Novak | Daughter | — | 15 | ~1925 |
| Steve Novak | Head | — | 44 | ~1896 |
| Theresa Novak | Daughter | — | 19 | ~1921 |
| Edward Novak | Son | — | 10 | ~1930 |
| Frank Novak | Son | — | 17 | ~1923 |
| William Novak | Son | — | 8 | ~1932 |
| Ethel Novak | Daughter | — | 12 | ~1928 |
| Johnie Novak | Son | — | 14 | ~1926 |
| Ludwig Novak | Son | — | 20 | ~1920 |
| Mary Novak | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Lake, Illinois
Other, age 29
Lake, Illinois · implied b. ~1901 — 4 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 | 29 |
| Marital Status | Married |
| Birthplace | Jugoslavia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1920 |
| Age at First Marriage | 20 |
| Father's Birthplace | Jugoslavia |
| Mother's Birthplace | Jugoslavia |
| Can Read/Write | Yes |
| Mother Tongue | Slovenian |
| Birthplace (normalized) | jugoslavia |
1940
Bucks-County, Pennsylvania
Spouse, age 39
Bucks-County, Pennsylvania · implied b. ~1901 — 12 household members
| Surname | Novak |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Jugoslavia |
| 1935 Residence (City) | Springfield Twp |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | jugoslavia |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Novak
Spouse · 1940 · age 39 · b. ~1901 · 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 — Bucks-County, Pennsylvania
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1940 US Federal Census — Bucks-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03447-00299)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Strabing | 41 | Head | Farmer | Czechoslovakia |
| 42 | Mary Strabing | 68 | Mother | — | Czechoslovakia |
| 43 | John Strabing | 32 | Brother | On Farm | Pennsylvania |
| 44 | John Gorman | 18 | Nephew | On Farm | Pennsylvania |
| 45 | Stephen Hrabina | 56 | Head | Farmer | Czechoslovakia |
| 46 | Anna Hrabina | 54 | Wife | Labor | Czechoslovakia |
| 47 | Rosa Hrabina | 20 | Daughter | Labor | New York |
| 48 | Rudolph Hrabina | 19 | Son | Farm Work | Pennsylvania |
| 49 | William Hrabina | 16 | Son | Farm Work | Pennsylvania |
| 50 | Catharine Striba | 56 | Head | — | Czechoslovakia |
| 51 | Stephen Striba | 22 | Son | Labor | Pennsylvania |
| 52 | George Striba | 25 | Son | Labor | Pennsylvania |
| 53 | John Onushneck | 78 | Head | Farmer | Latvia |
| 54 | John Lipcak | 56 | Boarder | Gen Work | Czechoslovakia |
| 55 | John Pudliner | 67 | Head | Farmer | Austria |
| 56 | Anna Pudliner | 59 | Wife | — | Austria |
| 57 | Steve Novak | 44 | Head | Crane Operator | Jugoslavia |
| 58 | Mary Novak THIS PERSON | 39 | Wife | — | Jugoslavia |
| 59 | Ludwig Novak | 20 | Son | Labor | Pennsylvania |
| 60 | Theresa Novak | 19 | Daughter | Labor | Pennsylvania |
| 61 | Frank Novak | 17 | Son | Labor | Pennsylvania |
| 62 | Anna Novak | 15 | Daughter | — | Pennsylvania |
| 63 | Johnie Novak | 14 | Son | — | Pennsylvania |
| 64 | Ethel Novak | 12 | Daughter | — | Pennsylvania |
| 65 | Edward Novak | 10 | Son | — | Pennsylvania |
| 66 | William Novak | 8 | Son | — | Pennsylvania |
| 67 | Gloria Novak | 5 | Daughter | — | Pennsylvania |
| 68 | Steve Novak | 3 | Son | — | Pennsylvania |
| 69 | David Johnson | 71 | Head | Farmer | Latvia |
| 70 | Annie Johnson | 67 | Wife | — | Latvia |
| 71 | Frank Shiber | 54 | Hired Man | Laborer | Jugoslavia |
| 72 | Susana M. Yost | 66 | Head | — | Pennsylvania |
| 73 | Howard S. Yost | 43 | Head | Miller | Pennsylvania |
| 74 | Blanche F. Yost | 42 | Wife | — | Pennsylvania |
| 75 | William S. Yost | 15 | Son | — | Pennsylvania |
| 76 | Raymond Lloyd | 35 | Boarder | Agricultural Teacher | New Jersey |
| 77 | Ira S. Hulziger | 48 | Head | Machinist Foreman | Pennsylvania |
| 78 | Mary A. Hulziger | 46 | Wife | — | Pennsylvania |
| 79 | Richard S. Hulziger | 25 | Son | Electrician | Pennsylvania |
| 80 | Anna Hulziger | 22 | Wife | — | 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)