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Joseph Kowalski — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lucas, Ohio
Our Model Tree links this Joseph Kowalski across the 1930 and 1940 US Censuses in Lucas, Ohio (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.
Age 38
b. ~1892
Male
Head
Born: Poland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Lucas, Ohio |
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Coal dock |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Value / Rent | 3,000 |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Occupation | Laborer |
| Township / Ward | Toledo |
| Est. Birth Year | ~1892 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Helen Kowalski | Daughter | — | 20 | ~1910 |
| Sigmund Kowalski | Son | — | 18 | ~1912 |
| Joseph Kowalski | Head | — | 38 | ~1892 |
| Dorothy Kowalski | Daughter | — | 15 | ~1915 |
| Leonard Kowalski | Son | — | 12 | ~1918 |
| Josephine Kowalski | Daughter | — | 20 | ~1910 |
| Marie Kowalski | Daughter | — | 22 | ~1908 |
| Florence Kowalski | Daughter | — | 20 | ~1910 |
| Rose Kowalski | Spouse | — | 33 | ~1897 |
Census Appearances
1930
Lucas, Ohio
Head, age 38
Lucas, Ohio · implied b. ~1892 — 9 household members
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 25 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Laborer |
| Industry | Coal dock |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Value / Rent | 3,000 |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Lucas-County, Ohio
Other, age 49
Lucas-County, Ohio · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | Partner |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Poland |
| 1935 Residence (City) | Toledo city |
| 1935 Residence (County) | Lucas |
| Naturalization Status | Naturalized |
| Occupation | Landscaper |
| Industry | Private family |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 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 Joseph Kowalski across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Joseph Kowalski
Head · 1930 · age 38 · b. ~1892 · Ohio
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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 — Lucas, Ohio
Open full size
1930 US Federal Census — Lucas, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1833:1003)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Fredrick Wood | 11 | Son | None | Ohio |
| 52 | Dorothy Luckner | 6 | Granddaughter | None | Ohio |
| 53 | Earl Lanz | 25 | Roomer | Operator | W. Virginia |
| 54 | John Pospichil | 43 | Head | Tool Maker | Austria |
| 55 | Helen Pospichil | 43 | Wife | None | Austria |
| 56 | John Pospichil | 25 | Son | Inspector | Connecticut |
| 57 | Helen Pospichil | 20 | Daughter | Supervisor | Connecticut |
| 58 | Charles Pospichil | 15 | Son | None | Connecticut |
| 59 | Eleanor Pospichil | 13 | Daughter | None | Connecticut |
| 60 | Ludwig Turek | 55 | Head | Laborer | Germany |
| 61 | Martha Turek | 52 | Wife | None | Germany |
| 62 | Walter Turek | 20 | Son | Laborer | Ohio |
| 63 | Helen Turek | 17 | Daughter | None | Ohio |
| 64 | Clement Turek | 14 | Son | None | Ohio |
| 65 | Joseph Kowalski THIS PERSON | 38 | Head | Laborer | Poland |
| 66 | Rose Kowalski | 33 | Wife | None | Poland |
| 67 | Helen Kowalski | 20 | Daughter | Umbrella Maker | Ohio |
| 68 | Florence Kowalski | 20 | Daughter | Steno | Ohio |
| 69 | Marie Kowalski | 22 | Daughter | Clerk Office | Ohio |
| 70 | Josephine Kowalski | 20 | Daughter | None | Ohio |
| 71 | Sigmund Kowalski | 18 | Son | None | Ohio |
| 72 | Dorothy Kowalski | 15 | Daughter | None | Ohio |
| 73 | Leonard Kowalski | 12 | Son | None | Ohio |
| 74 | Joseph Curless | 52 | Head | Laborer | Ohio |
| 75 | Anna Curless | 55 | Wife | None | Ohio |
| 76 | Joseph Curless | 25 | Son | Laborer | Ohio |
| 77 | Paul Galeski | 68 | Head | None | Poland |
| 78 | Pauline Galeski | 68 | Wife | None | Poland |
| 79 | John Galeski | 41 | Son | Laborer | Poland |
| 80 | Andrew Kubicki | 42 | Head | Laborer | Poland |
| 81 | Agnes Kubicki | 33 | Wife | None | Poland |
| 82 | Anna Kubicki | 12 | Daughter | None | Ohio |
| 83 | Helen Kubicki | 10 | Daughter | None | Ohio |
| 84 | Stefanie Kubicki | 9 | Daughter | None | Ohio |
| 85 | Walter Kubicki | 4 | Son | None | Ohio |
| 86 | Benny Cheflusz | 19 | Boarder | Laborer | Ohio |
| 87 | Frank Repinski | 51 | Head | Supt | Ohio |
| 88 | Julia Repinski | 43 | Wife | None | Ohio |
| 89 | Edward Repinski | 19 | Son | None | Ohio |
| 90 | Paul Repinski | 13 | Son | None | Ohio |
| 91 | Boleslaw Gregorek | 28 | Head | Machine Operator | Ohio |
| 92 | Flora Gregorek | 27 | Wife | None | Ohio |
| 93 | Theodore Gregorek | 4 | Son | None | Ohio |
| 94 | Robert Gregorek | 2 | Son | None | Ohio |
| 95 | Frank Simon | 30 | Head | Checker | Ohio |
| 96 | Rose Simon | 20 | Wife | Operator | Ohio |
| 97 | Kathleen Simon | 3 | Daughter | None | Ohio |
| 98 | John Guzar | 70 | Head | None | Poland |
| 99 | Joseph E Daly | 29 | Son-in-law | Salesman | Ohio |
| 100 | Wanda Daly | 22 | Daughter | None | Ohio |
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)