FK
Frank Kowalski — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Queens, New York
Our Model Tree links this Frank Kowalski across the 1930 and 1940 US Censuses in Queens, New York (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 12-person household.
Age 57
b. ~1873
Male
Head
Born: Poland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Queens, New York |
| Surname | KOWALSKI |
| Given Name | FRANK |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1894 |
| Age at First Marriage | 24 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Malleable Iron |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Value / Rent | 7725 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Occupation | Laborer |
| Township / Ward | New York City |
| Est. Birth Year | ~1873 |
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 1930 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Anna Kowalski | Spouse | — | 55 | ~1875 |
| Frank Kowalski | Head | — | 57 | ~1873 |
| Frank Kowalski | Son | — | 25 | ~1905 |
| John Kowalski | Son | — | 23 | ~1907 |
| Mary Kowalski | Daughter | — | 10 | ~1920 |
| Stanley Kowalski | Son | — | 11 | ~1919 |
| Edward Kowalski | Son | — | 21 | ~1909 |
| Alice Kowalski | Daughter | — | 14 | ~1916 |
| Stanley Kowalski | Son | — | 8 | ~1922 |
| Helen Kowalski | Daughter | — | 18 | ~1912 |
| Joseph Kowalski | Son | — | 6 | ~1924 |
| Anna Kowalski | Daughter | — | 4 | ~1926 |
Census Appearances
1930
Queens, New …
Head, age 57
Queens, New York · implied b. ~1873 — 12 household members
| Surname | KOWALSKI |
| Given Name | FRANK |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1894 |
| Age at First Marriage | 24 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Laborer |
| Industry | Malleable Iron |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Value / Rent | 7725 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Kings-County, New …
Head, age 68
Kings-County, New York · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalska |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Naturalization Status | Alien |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Frank Kowalski across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frank Kowalski
Head · 1930 · age 57 · b. ~1873 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Queens, New York
Open full size
1930 US Federal Census — Queens, New York
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1375:0987)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Willson | 45 | Head | Carpenter | New York State |
| 2 | Charlotte Willson | 44 | Wife | — | New York State |
| 3 | Charles Jr Willson | 19 | Son | Machinist | New York State |
| 4 | Ruth Willson | 17 | Daughter | — | New York State |
| 5 | Mildred Willson | 15 | Daughter | — | New York State |
| 6 | Dorothy Willson | 13 | Daughter | — | New York State |
| 7 | Alfred Hart | 40 | Head | Laborer | Ireland |
| 8 | Annie Hart | 40 | Wife | — | Ireland |
| 9 | Alfred Jr Hart | 13 | Son | — | New York |
| 10 | Margaret Hart | 11 | Daughter | — | New York |
| 11 | Catherine Hart | 5 | Daughter | — | New York |
| 12 | Mary Hart | 3 | Daughter | — | New York |
| 13 | John Hart | 1 | Son | — | New York |
| 14 | George Booth | 33 | Head | Machinist | Austria |
| 15 | Mary Booth | 32 | Wife | — | Austria |
| 16 | George Jr Booth | 8 | Son | — | New York |
| 17 | Joseph Booth | 5 | Son | — | New York |
| 18 | Anna Booth | 3 | Daughter | — | New York |
| 19 | Frank Booth | 1 | Son | — | New York |
| 20 | Frank Kowalski THIS PERSON | 57 | Head | Laborer | Poland |
| 21 | Anna Kowalski | 55 | Wife | — | Poland |
| 22 | Frank Jr Kowalski | 25 | Son | Laborer | New York |
| 23 | John Kowalski | 23 | Son | Laborer | New York |
| 24 | Edward Kowalski | 21 | Son | Laborer | New York |
| 25 | Helen Kowalski | 18 | Daughter | — | New York |
| 26 | Alice Kowalski | 14 | Daughter | — | New York |
| 27 | Stanley Kowalski | 11 | Son | — | New York |
| 28 | Mary Kowalski | 10 | Daughter | — | New York |
| 29 | Stanley Kowalski | 8 | Son | — | New York |
| 30 | Joseph Kowalski | 6 | Son | — | New York |
| 31 | Anna Kowalski | 4 | Daughter | — | New York |
| 32 | John Kowalski | 37 | Head | Laborer | Poland |
| 33 | Mary Kowalski | 32 | Wife | — | Poland |
| 34 | Walter Kowalski | 13 | Son | — | New York |
| 35 | John Jr Kowalski | 11 | Son | — | New York |
| 36 | Frank Kowalski | 8 | Son | — | New York |
| 37 | Anna Kowalski | 6 | Daughter | — | New York |
| 38 | Joseph Kowalski | 4 | Son | — | New York |
| 39 | Helen Kowalski | 2 | Daughter | — | New York |
| 40 | Sophie Kowalski | 1 | Daughter | — | New York |
| 41 | Stanley Kowalski | 0 | Son | — | New York |
| 42 | Stan Svipok | 44 | Head | Laborer | Poland |
| 43 | Katie Svipok | 44 | Wife | — | Poland |
| 44 | Olga Hook | 20 | Daughter | — | Poland |
| 45 | Paul Vanish | 42 | Lodger | Laborer | Poland |
| 46 | Mary Vanish | 38 | Lodger | — | Poland |
| 47 | John Vanish | 12 | Lodger | — | New York |
| 48 | Anna Vanish | 10 | Lodger | — | New York |
| 49 | Joseph Vanish | 8 | Lodger | — | New York |
| 50 | Helen Vanish | 6 | Lodger | — | New York |
Related Census Records
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)