MK
Mary Kowalski — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Erie, New York
Our Model Tree links this Mary Kowalski across the 1900 and 1910 US Censuses in Erie, New York (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 12-person household.
Age 45
b. ~1865
Female
Spouse
Born: Germany
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | Erie, New York |
| Surname | Kowalski |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 22 |
| Children Born | 2 |
| Children Living | 2 |
| Year of Immigration | 1881 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1865 |
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 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Kowalski | Head | — | 45 | ~1865 |
| Leo Kowalski | Son | — | 18 | ~1892 |
| Mary Kowalski | Spouse | — | 45 | ~1865 |
| John Kowalski | Son | — | 20 | ~1890 |
| Mary Kowalski | Daughter | — | 17 | ~1893 |
| John Kowalski | Son | — | 21 | ~1889 |
| Helen Kowalski | Daughter | — | 8 | ~1902 |
| Mary Kowalski | Daughter | — | 12 | ~1898 |
| Julia Kowalski | Daughter | — | 6 | ~1904 |
| Sophie Kowalski | Daughter | — | 10 | ~1900 |
| Anastasia Kowalski | Daughter | — | 15 | ~1895 |
| Angeline Kowalski | Spouse | — | 53 | ~1857 |
Census Appearances
1900
Erie, New …
Spouse, age 34
Erie, New York · implied b. ~1866 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kowalski |
| Given Name | Marietta |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Germany |
| Birth Month | Nov |
| Birth Year | 1866 |
| Year of Immigration | 1882 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1910
Erie, New …
Spouse, age 45
Erie, New York · implied b. ~1865 — 12 household members
| Surname | Kowalski |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 22 |
| Children Born | 2 |
| Children Living | 2 |
| Year of Immigration | 1881 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | German |
| 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 Mary Kowalski across 2 US Census years (1900 and 1910) in Erie, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Kowalski
Spouse · 1910 · age 45 · b. ~1865 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Erie, New York
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1910 US Federal Census — Erie, New York
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po942unit:0583)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Kowalski | 35 | Head | Hostler | New York |
| 52 | Mary Kowalski | 32 | Wife | — | New York |
| 53 | John Kowalski | 11 | Son | — | New York |
| 54 | Leo Kowalski | 9 | Son | Laborer | New York |
| 55 | Helen Kowalski | 7 | Daughter | — | New York |
| 56 | Edward Kowalski | 2 | Son | — | New York |
| 57 | Frank Kowalski | 36 | Head | Lineman Helper | Ger Polish |
| 58 | Mary Kowalski | 35 | Wife | — | Ger Polish |
| 59 | Frank Kowalski | 14 | Son | Laborer | New York |
| 60 | John Kowalski | 24 | Boarder | — | Unknown |
| 61 | Joseph Kowalski | 21 | Boarder | Laborer | Unknown |
| 62 | Frank Kowalski | 21 | Boarder | Laborer | Unknown |
| 63 | John Kowalski | 21 | Boarder | Laborer | Unknown |
| 64 | Frank Kowalski | 21 | Boarder | — | Unknown |
| 65 | John Kowalski | 45 | Head | Laborer | Germany |
| 66 | Mary Kowalski THIS PERSON | 45 | Wife | — | Germany |
| 67 | John Kowalski | 21 | Son | Machinist | Germany |
| 68 | Mary Kowalski | 17 | Daughter | Laborer | Ger Polish |
| 69 | Angeline Kowalski | 53 | Wife | — | Ger Polish |
| 70 | John Kowalski | 20 | Son | Laborer | New York |
| 71 | Leo Kowalski | 18 | Son | Laborer | New York |
| 72 | Anastasia Kowalski | 15 | Daughter | — | New York |
| 73 | Mary Kowalski | 12 | Daughter | — | New York |
| 74 | Sophie Kowalski | 10 | Daughter | — | New York |
| 75 | Helen Kowalski | 8 | Daughter | — | New York |
| 76 | Julia Kowalski | 6 | Daughter | — | New York |
| 77 | John Kowalski | 25 | Head | Driver | Ger Polish |
| 78 | Mary Kowalski | 24 | Wife | — | Ger Polish |
| 79 | Mary Kowalski | 5 | Daughter | — | New York |
| 80 | Alexander Kowalski | 3 | Son | — | New York |
| 81 | John Kowalski | 33 | Head | Laborer | Rus Polish |
| 82 | Rose Kowalski | 30 | Wife | — | Rus Polish |
| 83 | Rose Kowalski | 9 | Daughter | — | Rus Polish |
| 84 | John Kowalski | 7 | Son | — | Rus Polish |
| 85 | Joseph Kowalski | 5 | Son | — | Rus Polish |
| 86 | Casper Kowalski | 3 | Son | — | Rus Polish |
| 87 | Frank Kowalski | 31 | Head | Laborer | Rus Polish |
| 88 | Mary Kowalski | 31 | Wife | — | Rus Polish |
| 89 | Helen Kowalski | 12 | Daughter | — | Rus Polish |
| 90 | Rose Kowalski | 10 | Daughter | — | Rus Polish |
| 91 | Anna Kowalski | 8 | Daughter | — | New York |
| 92 | Mary Kowalski | 6 | Daughter | — | New York |
| 93 | John Kowalski | 4 | Son | — | New York |
| 94 | Valentine Kowalski | 2 | Son | — | New York |
| 95 | Joseph Kowalski | 26 | Head | Laborer | Rus Polish |
| 96 | Rose Kowalski | 22 | Wife | — | Rus Polish |
| 97 | Mary Kowalski | 3 | Daughter | — | Rus Polish |
| 98 | Anastasia Kowalski | 2 | Daughter | — | New York |
| 99 | Leo Kowalski | 1 | Son | — | New York |
| 100 | John Kowalski | 0 | Son | — | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)