MC
Mary Cronin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Cronin across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 12-person household.
Age 68
b. ~1872
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Kerry |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housework |
| Industry | Home |
| Highest Grade | 6 |
| 1935 Residence | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Housework |
| Township / Ward | Worcester |
| Est. Birth Year | ~1872 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mortimer Lyons | Spouse | — | 58 | ~1882 |
| Leonard Lurrai | Son | — | ~1940 | |
| Inez Lurrai | Spouse | — | 32 | ~1908 |
| David Cronin | Son | — | 35 | ~1905 |
| Marie Lyons | Daughter | — | 22 | ~1918 |
| Mary Demers | Spouse | — | 41 | ~1899 |
| Mary Lyons | Spouse | — | 56 | ~1884 |
| Mary Cronin | Head | — | 68 | ~1872 |
| Edgar Demers | Spouse | — | 43 | ~1897 |
| Fred Lurrai | Spouse | — | 33 | ~1907 |
| Fred Lurrai | Son | — | 2 | ~1938 |
| Arthur Cronin | Son | — | 36 | ~1904 |
Census Appearances
1930
Worcester, Massachusetts
Head, age 56
Worcester, Massachusetts · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Worcester-County, Massachusetts
Head, age 68
Worcester-County, Massachusetts · implied b. ~1872 — 12 household members
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Kerry |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Occupation | Housework |
| Industry | Home |
| Highest Grade | 6 |
| 1935 Residence | Ireland |
| 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 Cronin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cronin
Head · 1940 · age 68 · b. ~1872 · 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
40 people indexed on this census page (nara:1940:m-t0627-01715-00732)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John J. Lynch | 40 | Head | Salesman | Massachusetts |
| 42 | Helen Lynch | 15 | Daughter | — | Massachusetts |
| 43 | John Lynch | 11 | Son | — | Massachusetts |
| 44 | Patricia Lynch | 5 | Daughter | — | Massachusetts |
| 45 | Mary Brosnahan | 66 | Wife | Housework | Ireland |
| 46 | Cornelius Brosnahan | 68 | Husband | Tipper | Irish Free State |
| 47 | Thomas Brosnahan | 38 | Son | Clerk | Massachusetts |
| 48 | Andrew Brosnahan | 36 | Son | Assist. Foreman | Massachusetts |
| 49 | Ella Brosnahan | 35 | Daughter | At Home | Massachusetts |
| 50 | Pearl Margolis | 28 | Wife | Saleswoman | Massachusetts |
| 51 | Samuel Margolis | 34 | Husband | Bookkeeper | Massachusetts |
| 52 | Agnes Yates | 67 | Wife | Housework | Massachusetts |
| 53 | Joseph Yates | 58 | Husband | Carpenter | Massachusetts |
| 54 | Francis Yates | 31 | Son | Attendant | Massachusetts |
| 55 | Helen Jennette | 27 | Daughter | Housework | Massachusetts |
| 56 | Mary Jennette | 29 | Daughter | Bookkeeper | Massachusetts |
| 57 | Paul Jennette | 22 | Son | Clerk | Massachusetts |
| 58 | Rose Jennette | 67 | Mother | Housework | Italy |
| 59 | Mary Cronin THIS PERSON | 68 | Head | Housework | Ireland |
| 60 | Arthur Cronin | 36 | Son | Plasterer | Massachusetts |
| 61 | David J. Cronin | 35 | Son | Plasterer | Massachusetts |
| 62 | Mary Demers | 41 | Wife | Housework | Massachusetts |
| 63 | Edgar Demers | 43 | Husband | School Teacher | Massachusetts |
| 64 | Mortimer Lyons | 58 | Husband | Credit Manager | Rhode Island |
| 65 | Mary A. Lyons | 56 | Wife | Housework | Rhode Island |
| 66 | Marie E. Lyons | 22 | Daughter | Clerk | Rhode Island |
| 67 | Inez Lurrai | 32 | Wife | Housework | Massachusetts |
| 68 | Fred Lurrai | 33 | Husband | Salesman | Massachusetts |
| 69 | Fred Jr. Lurrai | 2 | Son | — | Massachusetts |
| 70 | Leonard Lurrai | 0 | Son | — | Massachusetts |
| 71 | Lillian Kent | 26 | Head | — | Massachusetts |
| 72 | Louise Kent | 7 | Daughter | — | Massachusetts |
| 73 | Beverly Kent | 4 | Daughter | — | Massachusetts |
| 74 | Warren Kent | 1 | Son | — | Massachusetts |
| 75 | Catherine Hurley | 51 | Wife | Housework | Massachusetts |
| 76 | Francis P. Hurley | 55 | Husband | Assembler | Massachusetts |
| 77 | Winifred Larose | 42 | Wife | Housework | Massachusetts |
| 78 | Clifton R. Larose | 42 | Husband | Brakeman | Massachusetts |
| 79 | Clifton Jr. Larose | 19 | Son | Student | Massachusetts |
| 80 | Kenneth E. Larose | 18 | Son | Student | 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)