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Helen Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Helen Mccarthy across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Timothy — first a daughter (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| John Mccarthy | Son | — | 21 | ~1919 |
| Francis Mccarthy | Son | — | 25 | ~1915 |
| Josephine Mccarthy | Spouse | — | 45 | ~1895 |
| John Mccarthy | Head | — | 45 | ~1895 |
| Helen Mccarthy | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 2
Suffolk, Massachusetts · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 12
Suffolk, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 23
Suffolk-County, Massachusetts · implied b. ~1917 — 5 household members
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Helen Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mccarthy (~0.92 confidence) and father Timothy Mccarthy (~0.92 confidence) and mother Josephine Mccarthy (~0.92 confidence) and mother Mary Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mccarthy
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Timothy Mccarthy
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Josephine Mccarthy
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Mccarthy
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Mccarthy
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
John Mccarthy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mccarthy
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01670-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian Freedman | 42 | Wife | — | Russia |
| 2 | Isidore Freedman | 16 | Son | — | Massachusetts |
| 3 | Frances Freedman | 14 | Daughter | — | Massachusetts |
| 4 | Idala Freedman | 11 | Daughter | — | Massachusetts |
| 5 | Stella Freedman | 11 | Daughter | — | Massachusetts |
| 6 | Hyman Price | 68 | Head | Salesman | Russia |
| 7 | Esther Anna Price | 66 | Wife | — | Russia |
| 8 | Esther Weidershein | 64 | Head | — | Russia |
| 9 | Louis Anton | 35 | Son-in-law | Tailor | Russia |
| 10 | Rebecca Anton | 35 | Daughter | Seamstress | Russia |
| 11 | Henry Center | 29 | Head | Attendant | Massachusetts |
| 12 | Sylvia Center | 27 | Wife | — | New York |
| 13 | Ina Center | 7 | Daughter | — | Massachusetts |
| 14 | Alma Center | 5 | Daughter | — | Massachusetts |
| 15 | Paula Center | 3 | Daughter | — | Massachusetts |
| 16 | Isaac Luberman | 55 | Head | Cabinet Maker | Russia |
| 17 | Sophia Luberman | 50 | Wife | — | Russia |
| 18 | Sally Luberman | 18 | Daughter | — | Massachusetts |
| 19 | Ephraim Newman | 54 | Head | Language Teacher | Poland |
| 20 | Ella Newman | 44 | Wife | Needle Worker | Poland |
| 21 | Bertram Newman | 5 | Son | — | Massachusetts |
| 22 | John Mccarthy | 45 | Head | Sales Manager | Massachusetts |
| 23 | Josephine Mccarthy | 45 | Wife | — | Massachusetts |
| 24 | Francis Mccarthy | 25 | Son | Sales Clerk | Massachusetts |
| 25 | Helen Mccarthy THIS PERSON | 23 | Daughter | — | Massachusetts |
| 26 | John Jr. Mccarthy | 21 | Son | Broker | Massachusetts |
| 27 | Vernon Eggebraaten | 34 | Head | Minister | South Dakota |
| 28 | Ella Eggebraaten | 30 | Wife | Organist | Connecticut |
| 29 | Vernon Eggebraaten | 5 | Son | — | South Dakota |
| 30 | Edith Chase | 71 | Head | — | New Hampshire |
| 31 | Arthur Nacerato | 66 | Head | — | New Hampshire |
| 32 | Marie Nacerato | 63 | Wife | — | Canada-English |
| 33 | Laurie Brown | 35 | Head | Chauffeur | Canada-English |
| 34 | Hazel Brown | 35 | Wife | — | Canada-English |
| 35 | Howard Brown | 16 | Brother | — | Canada-English |
| 36 | Lula Shuilford | 67 | Head | — | Virginia |
| 37 | Vera Shuilford | 42 | Daughter | School Teacher | Massachusetts |
| 38 | Clarence Shuilford | 39 | Son | Shipping Clerk | Massachusetts |
| 39 | Clifford Shuilford | 36 | Son | Cook | Massachusetts |
| 40 | Samuel Johns | 47 | Head | Rental Clerk | Pennsylvania |
Pedigree Summary
Helen + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)