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Mary Leary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Mary Leary across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Daughter
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Leary |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Assembler |
| Industry | Auto Firm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 796 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Assembler |
| Township / Ward | Buffalo City |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jean Leary | Daughter | — | 12 | ~1928 |
| Mary Leary | Daughter | — | 35 | ~1905 |
| Julia Moberry | Head | — | 55 | ~1885 |
| John Moberry | Son | — | 26 | ~1914 |
| Grace Moberry | Daughter | — | 29 | ~1911 |
| Jane Moberry | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Erie, New …
Other, age 25
Erie, New York · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary E |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 21 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Daughter, age 35
Erie-County, New York · implied b. ~1905 — 6 household members
| Surname | Leary |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Occupation | Assembler |
| Industry | Auto Firm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 796 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Leary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leary
Daughter · 1940 · age 35 · b. ~1905 · New York
★ You are viewing this record
Sibling
Jane Moberry
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Moberry
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Moberry
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Leary
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02823-00898)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carmella Surdi | 65 | Head | — | Italy |
| 2 | Sebastian Surdi | 35 | Son | Fruit Dealer | Italy |
| 3 | Nicholas Surdi | 44 | Head | Sales Clerk | Italy |
| 4 | Josephine Surdi | 33 | Wife | — | New York |
| 5 | Paul Surdi | 12 | Son | — | New York |
| 6 | Camille Surdi | 10 | Daughter | — | New York |
| 7 | Salvatore Surdi | 7 | Son | — | New York |
| 8 | Nicholas Jr. Surdi | 1 | Son | — | New York |
| 9 | Frank L. Walsh | 45 | Head | Electric Pump Operator | New York |
| 10 | Gertrude M. Walsh | 43 | Wife | — | New York |
| 11 | Grace Walsh | 20 | Daughter | Sales Clerk | New York |
| 12 | Frank Jr. Walsh | 19 | Son | Tree Planter | New York |
| 13 | James Walsh | 15 | Son | — | New York |
| 14 | Alice Walsh | 12 | Daughter | — | New York |
| 15 | Arline Walsh | 7 | Daughter | — | New York |
| 16 | Rosine Walsh | 5 | Daughter | — | New York |
| 17 | Margaret Moynihan | 58 | Head | — | Eire |
| 18 | Jerry Moynihan | 26 | Son | Car Assembling Laborer | New York |
| 19 | Timothy Moynihan | 26 | Son-in-law | Green Keeper | Eire |
| 20 | Helen J. Sherman | 38 | Head | Generator-Man | Pennsylvania |
| 21 | Dora E. Sherman | 35 | Wife | — | Pennsylvania |
| 22 | Lois C. Sherman | 16 | Daughter | — | Pennsylvania |
| 23 | Harry J. Kline | 34 | Brother-in-law | Generator-Man | Pennsylvania |
| 24 | John H. Kline | 22 | Brother-in-law | Ice Cream Buser | Pennsylvania |
| 25 | Gustave Rankin | 53 | Head | — | Germany |
| 26 | Olga Rankin | 56 | Wife | — | Germany |
| 27 | Bertha Rankin | 29 | Daughter | Bookkeeper & Stenographer | New York |
| 28 | Martha Rankin | 27 | Daughter | Bookkeeper | New York |
| 29 | Olga Rankin | 24 | Daughter | Stenographer | New York |
| 30 | Pauline Drachenberg | 85 | Mother-in-law | — | Germany |
| 31 | Richard Gritzke | 33 | Lodger | Air Conditioning In Bus | New York |
| 32 | Jennie E. Elmore | 46 | Head | — | Pennsylvania |
| 33 | Walter Elmore | 12 | Son | — | New York |
| 34 | John De Zutter | 74 | Father | — | Pennsylvania |
| 35 | Julia E. Moberry | 55 | Head | — | New York |
| 36 | Grace H. Moberry | 29 | Daughter | Clerk | New York |
| 37 | John J. Moberry | 26 | Son | Sleeper Operator | New York |
| 38 | Jane A. Moberry | 23 | Daughter | Elevator Operator | New York |
| 39 | Mary E. Leary THIS PERSON | 35 | Daughter | Assembler | New York |
| 40 | Jean M. Leary | 12 | Daughter | — | New York |
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)