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Mary Leahy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New York, New York
Our Model Tree links this Mary Leahy across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 47
b. ~1873
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | New York, New York |
| Surname | Leahy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Housework |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
| Occupation | Housework |
| Est. Birth Year | ~1873 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Leahy | Daughter | — | 22 | ~1898 |
| James Leahy | Son | — | 20 | ~1900 |
| Mary Leahy | Head | — | 47 | ~1873 |
| Elizabeth Leahy | Daughter | — | 23 | ~1897 |
Census Appearances
1900
New York, …
Spouse, age 28
New York, New York · implied b. ~1872 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leahy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Jun |
| Birth Year | 1872 |
| Year of Immigration | 1889 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Spouse, age 37
New York, New York · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leahy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 15 |
| Children Born | 5 |
| Children Living | 4 |
| Year of Immigration | 1890 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 47
New York, New York · implied b. ~1873 — 4 household members
| Surname | Leahy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housework |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
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 Leahy across 3 US Census years (1900, 1910 and 1920) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Leahy
Head · 1920 · age 47 · b. ~1873 · New York
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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 — New York, New York
Open full size
1920 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1272unit:1149)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Crane | 47 | Head | Housework | England |
| 52 | Ralph G. Stocks | 17 | Son | Assembler | New York |
| 53 | Helen V. Stocks | 13 | Daughter | School | New York |
| 54 | Frank R. Grant | 38 | Head | Teamster | New York |
| 55 | Mary A.E. Grant | 46 | Wife | Housework | Connecticut |
| 56 | Louis Vogle | 33 | Roomer | Clerk | New York |
| 57 | Gertrude A. Hoover | 31 | Roomer | Bottler | Canada |
| 58 | John Smidt | 61 | Roomer | Glass | Denmark |
| 59 | Martin Muberg | 60 | Roomer | Glass Polisher | Denmark |
| 60 | Edward J. Barry | 28 | Roomer | Salesman | New Jersey |
| 61 | August F. Wymart | 45 | Roomer | Laborer | Sweden |
| 62 | Alfred W. Wymart | 52 | Roomer | Laborer | England |
| 63 | John J. Kieman | 58 | Head | Undertaker | New York |
| 64 | Margaret Kieman | 49 | Wife | Housework | New York |
| 65 | David T. Anderson | 39 | Head | Painter | Scotland |
| 66 | Mary A. Anderson | 38 | Wife | Housework | New York |
| 67 | Anna G. Anderson | 18 | Daughter | Book Keeper | New York |
| 68 | David T. Jr. Anderson | 14 | Son | School | New York |
| 69 | Minerva G. Anderson | 3 | Daughter | — | New York |
| 70 | Ethel Smith | 12 | Niece | School | New York |
| 71 | Wm. J. Mulholland | 25 | Head | Laborer | New York |
| 72 | Lily Mulholland | 22 | Wife | Housework | New York |
| 73 | Alice Sheridan | 19 | Sister | Clerk | New York |
| 74 | John J. Sheridan | 19 | Son | Teamster | New York |
| 75 | Mary Leahy THIS PERSON | 47 | Head | Housework | Ireland |
| 76 | Elizabeth A. Leahy | 23 | Daughter | Operator | New York |
| 77 | Margaret J. Leahy | 22 | Daughter | Operator | New York |
| 78 | James J. Leahy | 20 | Son | Teamster | New York |
| 79 | Matthew J. Flynn | 55 | Head | Saloon Keeper | Ireland |
| 80 | Julia F. Flynn | 55 | Wife | Housework | New Jersey |
| 81 | John Mccormick | 56 | Roomer | Laborer | Ireland |
| 82 | Patrick Harris | 64 | Roomer | Bureau Of High. | Ireland |
| 83 | Al V. Ambrosie | 34 | Roomer | Clothing | Italy |
| 84 | J. M. Linnahan | 34 | Roomer | Laborer | Ireland |
| 85 | John Gubrich | 35 | Head | Fireman | Austria |
| 86 | Annie Gubrich | 30 | Wife | Housework | Austria |
| 87 | Alfred Gubrich | 1 | Son | — | New York |
| 88 | Gubrich Gubrich | 31 | Boarder | Fireman | Austria |
| 89 | John Gubrich | 30 | Boarder | Fireman | Austria |
| 90 | Henry Anderson | 50 | Head | Packer | England |
| 91 | Mary Anderson | 40 | Wife | Housework | Germany |
| 92 | Mary H. Anderson | 11 | Daughter | School | New York |
| 93 | Marjorie Anderson | 9 | Daughter | School | New York |
| 94 | Walter E. Anderson | 4 | Son | — | New York |
| 95 | Brother-In-Law John | 60 | Brother-in-law | Bottler | England |
| 96 | Lawrence Mcgovern | 34 | Roomer | Weigher | New York |
| 97 | Wm. T. Keating | 44 | Head | Bartender | Illinois |
| 98 | Mary Keating | 38 | Wife | Housework | New York |
| 99 | Gertrude V. Keating | 21 | Daughter | Nurse | New York |
| 100 | Thos. J. Brennan | 25 | Head | News-Dealer | New York |
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)