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Mary Leary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Leary across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 6-person household.
Age 67
b. ~1873
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Invalid |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Invalid |
| Township / Ward | Worcester City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Leary | Head | — | 67 | ~1873 |
| Marguerite Leary | Daughter | — | 42 | ~1898 |
| Joseph Leary | Son | — | 36 | ~1904 |
| Thomas Leary | Son | — | 32 | ~1908 |
| William Leary | Son | — | 34 | ~1906 |
| Henry Leary | Son | — | 31 | ~1909 |
Census Appearances
1920
Worcester, Massachusetts
Head, age 48
Worcester, Massachusetts · implied b. ~1872 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Naturalization Status | Un |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Worcester, Massachusetts
Head, age 55
Worcester, Massachusetts · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1888 |
| Age at First Marriage | 18 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 17 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Worcester-County, Massachusetts
Head, age 67
Worcester-County, Massachusetts · implied b. ~1873 — 6 household members
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Occupation | Invalid |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| 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 Leary across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Leary
Head · 1940 · age 67 · b. ~1873 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01715-00116)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Brouillette | 46 | Daughter | Stitcher | Massachusetts |
| 5 | James T. Sullivan | 63 | Head | Freight Handler | Ireland |
| 6 | Ellen Sullivan | 65 | Wife | Housework | Ireland |
| 7 | William Berry | 67 | Head | Laborer | England |
| 8 | Mary E. Berry | 61 | Wife | Housewife | England |
| 9 | Corrine Berry | 27 | Daughter | Saleslady | Massachusetts |
| 10 | Dora Berry | 25 | Daughter | Soda Fountain | Massachusetts |
| 11 | Eleanor Berry | 20 | Daughter | Housework | Massachusetts |
| 12 | Frank Farrell | 56 | Head | Machinist | Massachusetts |
| 13 | Marion Farrell | 57 | Wife | Machinist | Massachusetts |
| 14 | Eleanor Farrell | 23 | Daughter | Office Work | Massachusetts |
| 15 | Alice Farrell | 20 | Daughter | Confectionery | Massachusetts |
| 16 | George Aleknas | 50 | Head | Stationary Fireman | Lithuania |
| 17 | Mary Aleknas | 47 | Wife | Housewife | Lithuania |
| 18 | Mary Aleknas | 21 | Daughter | Housework | Massachusetts |
| 19 | Robert Aleknas | 13 | Son | Student | Massachusetts |
| 20 | Francis Aleknas | 6 | Son | Kindergarten | Massachusetts |
| 21 | John J. Powers | 68 | Head | Telegraph Operator | Massachusetts |
| 22 | Ellen Powers | 66 | Wife | Invalid | Massachusetts |
| 23 | Thomas Powers | 30 | Son | Steward | Massachusetts |
| 24 | Harriet Hally | 36 | Daughter | Housewife | Massachusetts |
| 25 | Harold Hally | 42 | Son-in-law | Leather Worker | Massachusetts |
| 26 | Harold Jr. Hally | 12 | Grandson | Student | Massachusetts |
| 27 | Charles H. Austin | 57 | Head | Laborer | Massachusetts |
| 28 | Stella Austin | 57 | Wife | Housewife | Massachusetts |
| 29 | Melvin Austin | 24 | Son | Student | Massachusetts |
| 30 | Mary Austin | 76 | Mother | Invalid | England |
| 31 | Mary Leary THIS PERSON | 67 | Head | Invalid | Ireland |
| 32 | Marguerite Leary | 42 | Daughter | Housework | Massachusetts |
| 33 | Joseph Leary | 36 | Son | Ambulance Driver | Massachusetts |
| 34 | William Leary | 34 | Son | Roofer | Massachusetts |
| 35 | Thomas Leary | 32 | Son | Clerk | Massachusetts |
| 36 | Henry Leary | 31 | Son | Teacher | Massachusetts |
| 37 | Jeremiah Shea | 76 | Head | Pensioner | Ireland |
| 38 | Mary Shea | 28 | Daughter | Teacher | Massachusetts |
| 39 | John Shea | 36 | Son | Lawyer | Massachusetts |
| 40 | Joseph Lusignan | 30 | Head | Machinist | Massachusetts |
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)