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Mary Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Mccarthy across the 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1895), then head of a 6-person household.
Age 35
b. ~1895
Female
Spouse
Born: Mass
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McCarthy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Mass |
| Age at First Marriage | 20 |
| Father's Birthplace | Mass |
| Mother's Birthplace | Mass |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
| Township / Ward | Boston City |
| Est. Birth Year | ~1895 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jeremiah Mccarthy | Head | — | 40 | ~1890 |
| Joseph Mccarthy | Son | — | 4 | ~1926 |
| Paul Mccarthy | Son | — | 1 | ~1929 |
| Lawrence Mccarthy | Son | — | 14 | ~1916 |
| Gerald Mccarthy | Son | — | 8 | ~1922 |
| Mary Mccarthy | Spouse | — | 35 | ~1895 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 24
Suffolk, Massachusetts · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Mass |
| Father's Birthplace | Mass |
| Mother's Birthplace | Mass |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
1930
Suffolk, Massachusetts
Spouse, age 35
Suffolk, Massachusetts · implied b. ~1895 — 6 household members
| Surname | McCarthy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Mass |
| Age at First Marriage | 20 |
| Father's Birthplace | Mass |
| Mother's Birthplace | Mass |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | mass |
1940
Norfolk-County, Massachusetts
Other, age 46
Norfolk-County, Massachusetts · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | Mary |
| Relationship to Head | Cousin |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Mass. |
| 1935 Residence (City) | STOUGHTON |
| 1935 Residence (County) | NORFOLK |
| Occupation | Clerical |
| Industry | Rubber Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 832 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 · 1930 · age 35 · b. ~1895 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel954:0911)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Hartigan | 59 | Head | Lieutenant | Irish Free State |
| 2 | Mary Hartigan | 57 | Wife | — | Mass |
| 3 | Mary Hartigan | 30 | Daughter | Artist | Mass |
| 4 | Edward Hartigan | 28 | Son | Mechanic | Mass |
| 5 | Helena Hartigan | 23 | Daughter | Clerk | Mass |
| 6 | Margaret Hartigan | 19 | Daughter | — | Mass |
| 7 | Catherine Curran | 58 | Cousin | — | Mass |
| 8 | Michael Boyce | 46 | O | Trucking | Quebec |
| 9 | Mary Boyce | 47 | Wife | — | Quebec |
| 10 | Charles Boyce | 18 | Son | — | Mass |
| 11 | Allen Boyce | 17 | Son | — | Mass |
| 12 | Robert Boyce | 9 | Son | — | Mass |
| 13 | John Moore | 41 | Head | Druggist | Mass |
| 14 | Marion Moore | 32 | Wife | — | Mass |
| 15 | Frances Moore | 10 | Daughter | — | Mass |
| 16 | Herbert Hayes | 26 | Brother-in-law | Chauffeur | Mass |
| 17 | Charles Hayes | 18 | Brother-in-law | — | Mass |
| 18 | Andrew Berlo | 34 | Head | Manager | Mass |
| 19 | Catherine Berlo | 34 | Wife | — | Mass |
| 20 | Eleanor Berlo | 5 | Daughter | — | Mass |
| 21 | Andrew Berlo | 3 | Son | — | Mass |
| 22 | Paul Berlo | 1 | Son | — | Mass |
| 23 | Herbert Mcardle | 50 | Head | Salesman | Mass |
| 24 | Agnes Mcardle | 40 | Wife | — | Mass |
| 25 | Ellen Mcardle | 70 | Mother-in-law | — | Mass |
| 26 | Mary Mcardle | 45 | Sister-in-law | Book Binder | Mass |
| 27 | Calvin Dean | 9 | Nephew | — | Mass |
| 28 | John Greer | 63 | Head | Painter | Mass |
| 29 | Emma Greer | 63 | Wife | — | Mass |
| 30 | Joseph Greer | 37 | Son | Mechanic | Mass |
| 31 | William Greer | 34 | Son | Mechanic | Mass |
| 32 | Florence Greer | 20 | Daughter | Packer | Mass |
| 33 | Genie Dietrich | 47 | Head | — | Nova Scotia |
| 34 | George Dietrich | 14 | Son | — | Mass |
| 35 | Rebecca Dietrich | 11 | Daughter | — | Mass |
| 36 | Jeremiah Mccarthy | 40 | Head | Inspector | Mass |
| 37 | Mary Mccarthy THIS PERSON | 35 | Wife | — | Mass |
| 38 | Lawrence Mccarthy | 14 | Son | — | Mass |
| 39 | Gerald Mccarthy | 8 | Son | — | Mass |
| 40 | Joseph Mccarthy | 4 | Son | — | Mass |
| 41 | Paul Mccarthy | 1 | Son | — | Mass |
| 42 | Edward Roberts | 44 | Head | Driver | Nova Scotia |
| 43 | Ella Roberts | 40 | Wife | — | Mass |
| 44 | Lillian Roberts | 19 | Daughter | Stenographer | Mass |
| 45 | Miriam Roberts | 17 | Daughter | — | Mass |
| 46 | Josephine Dalton | 56 | Head | — | England |
| 47 | Phillip Dalton | 34 | Son | Chauffeur | Mass |
| 48 | Adele Schall | 36 | Daughter | — | New Jersey |
| 49 | Ruth Schall | 13 | Granddaughter | — | Mass |
| 50 | Robert Schall | 10 | Grandson | — | Mass |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)