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Mary Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Mccarthy across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 7-person household.
Age 53
b. ~1887
Female
Spouse
Born: Mass
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Mass |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
| Township / Ward | Boston City |
| Est. Birth Year | ~1887 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Mccarthy | Daughter | — | 22 | ~1918 |
| Doris Mccarthy | Daughter | — | 15 | ~1925 |
| William Mccarthy | Head | — | 65 | ~1875 |
| Sam Mccarthy | Son | — | 31 | ~1909 |
| Paul Mccarthy | Son | — | 18 | ~1922 |
| James Mccarthy | Son | — | 20 | ~1920 |
| Mary Mccarthy | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 31
Suffolk, Massachusetts · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Mass |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
Spouse, age 42
Suffolk, Massachusetts · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Mass |
| Age at First Marriage | 30 |
| Father's Birthplace | Mass |
| Mother's Birthplace | Mass |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
1940
Suffolk-County, Massachusetts
Spouse, age 53
Suffolk-County, Massachusetts · implied b. ~1887 — 7 household members
| Surname | McCarthy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Mass |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mccarthy
Spouse · 1940 · age 53 · b. ~1887 · 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01665-00285)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Maloney | 6 | Son | — | Mass |
| 2 | Joan Maloney | 3 | Daughter | — | Mass |
| 3 | William H. Mccarthy | 65 | Head | Operator | Mass |
| 4 | Mary E. Mccarthy THIS PERSON | 53 | Wife | — | Mass |
| 5 | Sam Mccarthy | 31 | Son | Accountant | Mass |
| 6 | Gertrude Mccarthy | 22 | Daughter | Examiner | Mass |
| 7 | James Mccarthy | 20 | Son | Errand Boy | Mass |
| 8 | Paul Mccarthy | 18 | Son | — | Mass |
| 9 | Doris Mccarthy | 15 | Daughter | — | Mass |
| 10 | Adam Stanbury | 69 | Head | — | Lithuania |
| 11 | Frances L. Haynes | 52 | Head | — | Mass |
| 12 | Max Mondia | 32 | Lodger | Saleslady | Mass |
| 13 | George Mondia | 30 | Lodger | Chauffeur | Mass |
| 14 | Martin J. Roach | 71 | Head | Clerk | Mass |
| 15 | Emma M. Roach | 68 | Sister | Book Gilder | Mass |
| 16 | Mary Klement | 59 | Head | Factory Worker | Poland |
| 17 | Anthony Stankiewicz | 42 | Son | — | Mass |
| 18 | Charles W. Kelly | 48 | Head | Shoe Worker | Maine |
| 19 | Charlotte Kelly | 55 | Wife | Engineer | Nova Scotia |
| 20 | Frances H. Kelly | 37 | Daughter | — | Maine |
| 21 | Stanley Barry | 52 | Head | — | Lithuania |
| 22 | Julia Barry | 31 | Wife | Window Cleaner | Mass |
| 23 | Nellie J. Barry | 11 | Daughter | Finisher | Mass |
| 24 | Thomas Wythe | 32 | Head | — | Mass |
| 25 | Mary Wythe | 32 | Wife | Chauffeur | Mass |
| 26 | Thomas Wythe | 5 | Son | — | Mass |
| 27 | Mary Wythe | 0 | Daughter | — | Mass |
| 28 | William Dolphin | 66 | Head | — | Belgium |
| 29 | Mary Dolphin | 60 | Wife | Cigar Maker | Belgium |
| 30 | Marie Dolphin | 37 | Daughter | — | Mass |
| 31 | Richard F. Martin | 34 | Head | Laundress | Mass |
| 32 | Julia Martin | 34 | Wife | Chauffeur | Mass |
| 33 | Lola Martin | 12 | Daughter | Laundress | Mass |
| 34 | Virginia Martin | 13 | Daughter | Lumper | Mass |
| 35 | Edward Brennan | 69 | Father-in-law | — | Irish Free State |
| 36 | George O'Leary | 26 | Head | Laborer | Mass |
| 37 | Helen O'Leary | 24 | Wife | Truck Driving | Mass |
| 38 | Lorraine O'Leary | 3 | Daughter | — | Mass |
| 39 | Georgine O'Leary | 1 | Daughter | — | Mass |
| 40 | Julian Sneider | 30 | Brother-in-law | Laborer | Mass |
Related Census Records
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)