MK
Mary Kowalski — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Wayne, Michigan
Our Model Tree links this Mary Kowalski across the 1910 and 1920 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1867), then head of a 9-person household.
Age 53
b. ~1867
Female
Spouse
Born: Poland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Wayne, Michigan |
| Surname | Kowalski |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1881 |
| Naturalization Status | Alien |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1867 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Kowalski | Son | — | 29 | ~1891 |
| Mary Kowalski | Spouse | — | 53 | ~1867 |
| Walter Kowalski | Son | — | 24 | ~1896 |
| William Kowalski | Son | — | 30 | ~1890 |
| Antony Kowalski | Head | — | 63 | ~1857 |
| Mary Kowalski | Daughter | — | 20 | ~1900 |
| Susan Kowalski | Daughter | — | 16 | ~1904 |
| John Kowalski | Son | — | 22 | ~1898 |
| Rosa Kowalski | Daughter | — | 10 | ~1910 |
Census Appearances
1910
Wayne, Michigan
Spouse, age 46
Wayne, Michigan · implied b. ~1864 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Poland |
| Years Married | 29 |
| Children Born | 9 |
| Children Living | 9 |
| Year of Immigration | 1882 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1920
Wayne, Michigan
Spouse, age 53
Wayne, Michigan · implied b. ~1867 — 9 household members
| Surname | Kowalski |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1881 |
| Naturalization Status | Alien |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| 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 Mary Kowalski across 2 US Census years (1910 and 1920) in Wayne, Michigan, using XGBoost record linkage.
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This person
Anchor record
Mary Kowalski
Spouse · 1920 · age 53 · b. ~1867 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Wayne, Michigan
Open full size
1920 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu812unit:1173)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anna Ebel | 30 | Wife | — | Michigan |
| 52 | Dorothy Ebel | 7 | Daughter | — | Michigan |
| 53 | Edward Ebel | 5 | Son | — | Michigan |
| 54 | Irene Ebel | 3 | Daughter | — | Michigan |
| 55 | Herbert Ebel | 1 | Son | — | Michigan |
| 56 | Allen Hawley | 34 | Head | Labour | Canada |
| 57 | Lottie Hawley | 42 | Wife | — | Canada |
| 58 | Fredrick B Johnson | 34 | Head | Carpenter | England |
| 59 | Mary Johnson | 31 | Wife | — | Canada |
| 60 | Mildred Johnson | 9 | Daughter | — | Michigan |
| 61 | Lionel Sigman | 21 | Nephew | Carpenter | Michigan |
| 62 | Felix Wasilewski | 27 | Head | Labour | Poland |
| 63 | Anna Wasilewski | 33 | Wife | — | Michigan |
| 64 | Leonard Wasilewski | 3 | Son | — | Michigan |
| 65 | Frank Wasilewski | 1 | Son | — | Michigan |
| 66 | Antony Kowalski | 63 | Head | Labour | Poland |
| 67 | Mary Kowalski THIS PERSON | 53 | Wife | — | Poland |
| 68 | William Kowalski | 30 | Son | Carpenter | Michigan |
| 69 | Walter Kowalski | 24 | Son | — | Michigan |
| 70 | Joseph Kowalski | 29 | Son | Carpenter | Michigan |
| 71 | John Kowalski | 22 | Son | Carpenter | Michigan |
| 72 | Mary Kowalski | 20 | Daughter | — | Michigan |
| 73 | Susan Kowalski | 16 | Daughter | — | Michigan |
| 74 | Rosa Kowalski | 10 | Daughter | — | Michigan |
| 75 | John Lawrence | 67 | Head | Labour | Germany |
| 76 | Minnie Lawrence | 66 | Wife | — | Germany |
| 77 | John Clasfield | 35 | Head | Labour | Indiana |
| 78 | Irene Clasfield | 43 | Wife | — | Michigan |
| 79 | Ralph Miller | 16 | Step son | — | Michigan |
| 80 | Richard Miller | 14 | Step son | — | Ohio |
| 81 | Helen Miller | 11 | Step daughter | — | Ohio |
| 82 | Matthew Canning | 44 | Head | Labour | Scotland |
| 83 | Jennie Canning | 45 | Wife | — | Scotland |
| 84 | James Canning | 21 | Son | Labour | Scotland |
| 85 | Archie Canning | 19 | Son | Labour | Scotland |
| 86 | Matthew Canning | 18 | Son | Labour | Scotland |
| 87 | Jeanie Canning | 16 | Daughter | — | Scotland |
| 88 | Mary Canning | 14 | Daughter | — | Scotland |
| 89 | Christina Canning | 11 | Daughter | — | Canada |
| 90 | Clare Canning | 9 | Daughter | — | Canada |
| 91 | Thomas Canning | 6 | Son | — | Michigan |
| 92 | Herman Groh | 45 | Head | Labour | Germany |
| 93 | Josephine Groh | 39 | Wife | — | Ohio |
| 94 | Herman Jr Groh | 13 | Son | — | Michigan |
| 95 | Melvin Groh | 1 | Son | — | Michigan |
| 96 | Paul P Warke | 26 | Head | Agent | Michigan |
| 97 | Sophia Warke | 25 | Wife | — | Pennsylvania |
| 98 | Paul Jr Warke | 4 | Son | — | Michigan |
| 99 | Clements Warke | 2 | Son | — | Michigan |
| 100 | Marshal Warke | 0 | Son | — | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)