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Joseph Kowalski — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Joseph Kowalski across the 1910, 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Jan & Joseph — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Job Setter |
| Industry | Auto Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Job Setter |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Richard Kowalski | Son | — | 7 | ~1933 |
| Joseph Kowalski | Head | — | 37 | ~1903 |
| Frances Kowalski | Spouse | — | 35 | ~1905 |
Census Appearances
1910
Wayne, Michigan
Son, age 6
Wayne, Michigan · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Wayne, Michigan
Son, age 16
Wayne, Michigan · implied b. ~1904 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Joe |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Machine hand |
| Industry | Factory shop |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Other, age 27
Wayne, Michigan · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | Guest |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 24 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Machinist |
| Industry | Auto Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Value / Rent | 35 |
| Veteran | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Head, age 37
Wayne-County, Michigan · implied b. ~1903 — 3 household members
| Surname | Kowalski |
| Given Name | Joseph |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Job Setter |
| Industry | Auto Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jan Kowalski (~0.92 confidence) and father Joseph Kowalski (~0.92 confidence) and mother Mary Kowalski (~0.92 confidence) and mother Stanislawa Kowalski (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jan Kowalski
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Joseph Kowalski
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Mary Kowalski
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Stanislawa Kowalski
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Kowalski
Head · 1940 · age 37 · b. ~1903 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01862-00555)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dolores Brachiak | 6 | daughter | — | Michigan |
| 42 | Felix Uranowski | 34 | head | Polisher | Germany |
| 43 | Violet Uranowski | 25 | wife | — | Michigan |
| 44 | Richard Uranowski | 4 | son | — | Michigan |
| 45 | Raymond Kowalski | 27 | head | Assistant Foreman | Michigan |
| 46 | Elizabeth Kowalski | 19 | wife | — | Michigan |
| 47 | Walter Bigoska | 43 | head | Manager Store | Poland |
| 48 | Adelaide Bigoska | 32 | wife | Grocery Clerk | Canada English |
| 49 | Walter Zakrzewski | 57 | head | Painter | Poland |
| 50 | Mary Zakrzewski | 51 | wife | — | Poland |
| 51 | John Grzywacz | 29 | head | Machinist | Michigan |
| 52 | Anne Grzywacz | 26 | wife | — | Michigan |
| 53 | Anna Glazer | 50 | aunt | Cigar Maker | Michigan |
| 54 | Frank Hinckley | 37 | head | Metal Finisher | Pennsylvania |
| 55 | Josephine Hinckley | 40 | wife | — | Poland |
| 56 | Thomas Hinckley | 16 | son | — | Michigan |
| 57 | Delphine Hinckley | 13 | daughter | — | Michigan |
| 58 | Roy Kleinsorge | 34 | head | Tire Builder | Missouri |
| 59 | Caroline Kleinsorge | 30 | wife | — | Michigan |
| 60 | Frank Gostek | 25 | head | Salesman | Michigan |
| 61 | Emily Gostek | 24 | wife | — | Pennsylvania |
| 62 | Barbara Gostek | 9 | daughter | — | Michigan |
| 63 | Beverly Gostek | 0 | daughter | — | Michigan |
| 64 | Joseph Kowalski THIS PERSON | 37 | head | Job Setter | Michigan |
| 65 | Frances Kowalski | 35 | wife | Beauty Operator | New York |
| 66 | Richard Kowalski | 7 | son | — | Michigan |
| 67 | Charles Bahnocki | 34 | head | Steel Window Worker | Pennsylvania |
| 68 | Alice Bahnocki | 25 | wife | — | Russia |
| 69 | Donald Bahnocki | 4 | son | — | Michigan |
| 70 | Robert Bahnocki | 0 | son | — | Michigan |
| 71 | John Traczyk | 46 | head | Die Maker | Poland |
| 72 | Mary Traczyk | 46 | wife | — | Poland |
| 73 | Clementine Traczyk | 25 | daughter | Touch Up | Michigan |
| 74 | John Jr Traczyk | 22 | son | Die Maker | Michigan |
| 75 | Irene Traczyk | 18 | daughter | Touch Up | Michigan |
| 76 | John H Mcnamara | 60 | head | Distributor | Michigan |
| 77 | Eleanore Mcnamara | 55 | wife | — | Michigan |
| 78 | Edward Mcnamara | 20 | son | Apprentice | Michigan |
| 79 | Robert Mcnamara | 16 | son | — | Michigan |
Pedigree Summary
Joseph
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)