MC
Mary Costello — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Kings, New York
Our Model Tree links this Mary Costello across the 1900, 1910 and 1920 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 20
b. ~1880
Female
Spouse
Born: Italy
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Kings, New York |
| Surname | Costello |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Italy |
| Birth Month | Jan |
| Birth Year | 1880 |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
| Township / Ward | City Of New York |
| 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.
3 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Costello | Head | — | 33 | ~1867 |
| Thomas Costello | Son | — | 1 | ~1899 |
| Mary Costello | Spouse | — | 20 | ~1880 |
Census Appearances
1900
Kings, New …
Spouse, age 20
Kings, New York · implied b. ~1880 — 3 household members
| Surname | Costello |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Italy |
| Birth Month | Jan |
| Birth Year | 1880 |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
1910
Kings, New …
Spouse, age 28
Kings, New York · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Castello |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Italy |
| Years Married | 13 |
| Children Born | 3 |
| Children Living | 3 |
| Year of Immigration | 1902 |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read | No |
| Can Write | No |
| Speaks English | Italian |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
1920
Kings, New …
Spouse, age 36
Kings, New York · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Castelli |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Italy |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Italian |
| Birth Country | Italy |
| Birthplace (normalized) | italy |
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 Costello across 3 US Census years (1900, 1910 and 1920) in Kings, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Costello
Spouse · 1900 · age 20 · 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
1900 US Federal Census — Kings, New York
Open full size
1900 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1068unit:0522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amanda Meyer | 53 | Wife | — | Germany |
| 2 | Emma Meyer | 21 | Daughter | — | New York |
| 3 | Henry Meyer | 19 | Son | — | New York |
| 4 | Clara Meyer | 11 | Daughter | — | New York |
| 5 | Charles Traut | 32 | Head | Florist | Germany |
| 6 | Charles Radke | 55 | Boarder | Laborer Day | Germany |
| 7 | John J. Henry | 65 | Head | Contractor | Ireland |
| 8 | Thomas Henry | 34 | Son | — | New York |
| 9 | Rosanna Henry | 13 | Granddaughter | — | New York |
| 10 | Sarah E. Whitcomb | 42 | Boarder | — | New York |
| 11 | Mary Wackenhut | 60 | Head | — | Ireland |
| 12 | Lawrence Wackenhut | 13 | Son | — | New York |
| 13 | Catherine Divine | 38 | Head | Working Woman | Ireland |
| 14 | Ellen Divine | 10 | Daughter | — | New York |
| 15 | Thomas L. Moore | 51 | Head | — | New York |
| 16 | Isabella Moore | 58 | Wife | — | New York |
| 17 | Mary A. Moore | 30 | Daughter | — | New York |
| 18 | James H. Moore | 9 | Grandson | — | New York |
| 19 | Oliver Francis D. Moore | 2 | Grandson | — | New York |
| 20 | James H. Moore | 34 | Head | — | New York |
| 21 | Cornelia Moore | 31 | Wife | — | New York |
| 22 | Thomas L. Moore | 7 | Son | — | New York |
| 23 | Joseph Dammann | 29 | Head | — | New York |
| 24 | Nicholas Corletto | 34 | Head | Junkman | Italy |
| 25 | Anna Corletto | 34 | Wife | — | Italy |
| 26 | Rosa Corletto | 9 | Daughter | — | New York |
| 27 | Mamie Corletto | 8 | Daughter | — | New York |
| 28 | Mary Corletto | 2 | Daughter | — | New York |
| 29 | Thomas Corletto | 1 | Son | — | New York |
| 30 | John Costello | 32 | Head | Junkman | Italy |
| 31 | Mary Costello THIS PERSON | 20 | Wife | — | Italy |
| 32 | Thomas Costello | 1 | Son | — | New York |
| 33 | Michael Goll | 30 | Head | Day Laborer | Italy |
| 34 | Rosa Goll | 29 | Wife | — | Italy |
| 35 | Harry Goll | 8 | Son | — | Italy |
| 36 | Joseph Goll | 4 | Son | — | New York |
| 37 | Nicholas Intera | 23 | Boarder | Day Laborer | Italy |
| 38 | Amadio Fufino | 47 | Head | Day Labor | Italy |
| 39 | Mary Fufino | 34 | Wife | — | Italy |
| 40 | Antonia Fufino | 16 | Daughter | — | New York |
| 41 | Rosa Fufino | 14 | Daughter | — | New York |
| 42 | Michael Fufino | 12 | Son | — | New York |
| 43 | Lucy Fufino | 9 | Daughter | — | New York |
| 44 | Louisa Fufino | 6 | Daughter | — | New York |
| 45 | Antonio Fufino | 4 | Son | — | New York |
| 46 | Mary Fufino | 2 | Daughter | — | New York |
| 47 | John Fufino | 1 | Son | — | New York |
| 48 | Michael Mancuso | 44 | Head | Laborer | Italy |
| 49 | Anna Mancuso | 47 | Wife | — | Italy |
| 50 | Michael Mancuso | 18 | Son | Laborer | Italy |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)