FK
Frank Kowalski — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Onondaga-County, New York
Our Model Tree links this Frank Kowalski across the 1920, 1930 and 1940 US Censuses in Onondaga-County, New York (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 7-person household.
Age 60
b. ~1880
Male
Head
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Onondaga-County, New York |
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Syracuse |
| 1935 Residence (County) | Onondaga |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Machine Operator |
| Industry | Auto Parts factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1035 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Machine Operator |
| Township / Ward | Syracuse |
| Est. Birth Year | ~1880 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Kowalski | Other | — | 53 | ~1887 |
| Frank Kowalski | Head | — | 60 | ~1880 |
| Catherine Kowalski | Daughter | — | 25 | ~1915 |
| John Kowalski | Son | — | 28 | ~1912 |
| Anna Kowalski | Spouse | — | 59 | ~1881 |
| Fred Kowalski | Son | — | 30 | ~1910 |
| Clara Kowalski | Daughter | — | 32 | ~1908 |
Census Appearances
1920
Onondaga, New …
Head, age 40
Onondaga, New York · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Frederick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Machinist |
| Industry | Gear Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth Country | Germany |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | germany |
1930
Onondaga, New …
Head, age 50
Onondaga, New York · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1883 |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Machinist |
| Industry | Gear Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Onondaga-County, New …
Head, age 60
Onondaga-County, New York · implied b. ~1880 — 7 household members
| Surname | Kowalski |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Syracuse |
| 1935 Residence (County) | Onondaga |
| Naturalization Status | Naturalized |
| Occupation | Machine Operator |
| Industry | Auto Parts factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1035 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frank Kowalski
Head · 1940 · age 60 · b. ~1880 · New York
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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 — Onondaga-County, New York
Open full size
1940 US Federal Census — Onondaga-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02853-00335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Amato | 15 | Son | — | New York |
| 2 | Mary Amato | 14 | Daughter | — | New York |
| 3 | Florence Amato | 14 | Daughter | — | New York |
| 4 | George Miller | 49 | Head | Laborer | New York |
| 5 | Varnum Miller | 13 | Son | — | New York |
| 6 | Thomas Mick | 70 | Head | — | Germany |
| 7 | Nicholas Metzger | 67 | Head | — | New York |
| 8 | Sophia Metzger | 62 | Sister | — | New York |
| 9 | Alphonso Hammuro | 38 | Head | Moulder | Italy |
| 10 | Andre Hammuro | 34 | Wife | — | Italy |
| 11 | Virginia Hammuro | 16 | Daughter | — | New York |
| 12 | Angeline Hammuro | 14 | Daughter | — | New York |
| 13 | Anna Hammuro | 12 | Daughter | — | New York |
| 14 | Samuel Hammuro | 12 | Son | — | New York |
| 15 | Mary Hammuro | 9 | Daughter | — | New York |
| 16 | Angeline Paladino | 60 | Mother in law | — | Italy |
| 17 | Emma Punok | 64 | Head | — | New York |
| 18 | Frederick G. Punok | 28 | Son | Salesman | New York |
| 19 | E. Edwards | 60 | Head | Shipping Clerk | New York |
| 20 | Christiana Edwards | 61 | Wife | — | New York |
| 21 | Mary Thobico | 61 | Head | — | Italy |
| 22 | Carmon Thobico | 32 | Son | Painter | New York |
| 23 | Mary Thobico | 25 | Daughter in law | — | New York |
| 24 | John Karlas | 50 | Head | Carpenter | Germany |
| 25 | John Jr. Karlas | 21 | Son | Labour | New York |
| 26 | Frederick Schmidt | 62 | Head | Polisher | Germany |
| 27 | Justina Schmidt | 57 | Wife | — | Germany |
| 28 | Thelma Schmidt | 25 | Daughter | — | New York |
| 29 | Edward Schmidt | 22 | Son | Distributor | New York |
| 30 | Mary Schmidt | 15 | Daughter | — | New York |
| 31 | Frank Kowalski THIS PERSON | 60 | Head | Machine Operator | Germany |
| 32 | Anna Kowalski | 59 | Wife | — | Germany |
| 33 | Clara Kowalski | 32 | Daughter | Packer | New York |
| 34 | Fred Kowalski | 30 | Son | Mason Tender | New York |
| 35 | John Kowalski | 28 | Son | Candle Cutter | New York |
| 36 | Catherine Kowalski | 25 | Daughter | Wick Cutter | New York |
| 37 | Frank Kowalski | 53 | Brother | Machine Operator | New York |
| 38 | Frank Schultz | 36 | Head | Mason Tender | New York |
| 39 | Florence Schultz | 31 | Wife | — | New York |
| 40 | Ronald Schultz | 6 | Son | — | New York |
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)