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Mary Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Mccarthy across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 10-person household.
Age 43
b. ~1897
Female
Spouse
Born: France
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | France |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Alien |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth Country | France |
| Birthplace (normalized) | france |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1897 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helene Mccarthy | Daughter | — | 15 | ~1925 |
| Mary Mccarthy | Daughter | — | 16 | ~1924 |
| Jean Mccarthy | Daughter | — | 12 | ~1928 |
| Michael Mccarthy | Head | — | 45 | ~1895 |
| Michael Mccarthy | Son | — | 11 | ~1929 |
| Roger Mccarthy | Son | — | 8 | ~1932 |
| Robert Mccarthy | Son | — | 5 | ~1935 |
| Paul Mccarthy | Son | — | 6 | ~1934 |
| Richard Mccarthy | Son | — | 13 | ~1927 |
| Mary Mccarthy | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 33
Middlesex, Massachusetts · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Mary A. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | France |
| Naturalization Status | Alien |
| Year of Immigration | 1920 |
| Age at First Marriage | 23 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Can Read/Write | Yes |
| Mother Tongue | French |
| Birth Country | France |
| Birthplace (normalized) | france |
1940
Worcester-County, Massachusetts
Spouse, age 43
Worcester-County, Massachusetts · implied b. ~1897 — 10 household members
| Surname | McCarthy |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | France |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Alien |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth Country | France |
| Birthplace (normalized) | france |
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 Mccarthy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mccarthy
Spouse · 1940 · age 43 · b. ~1897 · 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
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1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01715-00522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Krakowski | 53 | Wife | — | Poland |
| 2 | Helen C. Krakowski | 24 | Daughter | Waitress | Massachusetts |
| 3 | Edna S. Krakowski | 21 | Daughter | Inspector | Massachusetts |
| 4 | Walter J. Krakowski | 20 | Son | — | Massachusetts |
| 5 | Ruth R. Krakowski | 14 | Daughter | — | Massachusetts |
| 6 | Anthony Smelewicz | 44 | Head | Steel Heater | Lithuania |
| 7 | Anna M. Smelewicz | 43 | Wife | — | Lithuania |
| 8 | Frank Smelewicz | 17 | Son | — | Massachusetts |
| 9 | William Smelewicz | 11 | Son | — | Massachusetts |
| 10 | Leo P. Jolly | 29 | Head | Sales Manager | Massachusetts |
| 11 | Nora Jolly | 30 | Wife | — | Massachusetts |
| 12 | Leo P. Jr. Jolly | 7 | Son | — | Massachusetts |
| 13 | Robert E. Jolly | 6 | Son | — | Massachusetts |
| 14 | Jean C. Jolly | 3 | Daughter | — | Massachusetts |
| 15 | William Gawlowicz | 50 | Head | Sweep Floors | Lithuania |
| 16 | Anna Gawlowicz | 48 | Wife | Press Operator | Lithuania |
| 17 | John Gawlowicz | 25 | Son | Press Operator | Maine |
| 18 | Bertha Gawlowicz | 20 | Daughter | Press Operator | Massachusetts |
| 19 | James H. Hondurgan | 31 | Head | Shipper | Massachusetts |
| 20 | Katherine Hondurgan | 31 | Wife | Packer | Massachusetts |
| 21 | John Wojciak | 25 | Head | Clerk | Massachusetts |
| 22 | Edmund Wojciak | 23 | Brother | Clerk | Massachusetts |
| 23 | Helen Wojciak | 21 | Sister | — | Massachusetts |
| 24 | Stanley Wojciak | 18 | Brother | Clerk | Massachusetts |
| 25 | Walter Wojciak | 15 | Brother | — | Massachusetts |
| 26 | Wallace Wojciak | 15 | Brother | — | Massachusetts |
| 27 | Theodore Wojciak | 13 | Brother | — | Massachusetts |
| 28 | Harry Wojciak | 11 | Brother | — | Massachusetts |
| 29 | Clarina Deliviau | 64 | Head | — | Canada-French |
| 30 | John Hammond | 70 | Lodger | — | Massachusetts |
| 31 | Michael R. Mccarthy | 45 | Head | Stone Mason | Massachusetts |
| 32 | Mary A. Mccarthy THIS PERSON | 43 | Wife | — | France |
| 33 | Mary A. Mccarthy | 16 | Daughter | — | Massachusetts |
| 34 | Helene K. Mccarthy | 15 | Daughter | — | Massachusetts |
| 35 | Richard P. Mccarthy | 13 | Son | — | Massachusetts |
| 36 | Jean Mccarthy | 12 | Daughter | — | Massachusetts |
| 37 | Michael R. Jr. Mccarthy | 11 | Son | — | Massachusetts |
| 38 | Roger Mccarthy | 8 | Son | — | Massachusetts |
| 39 | Paul J. Mccarthy | 6 | Son | — | Massachusetts |
| 40 | Robert J. Mccarthy | 5 | Son | — | 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)