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Helen Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Helen Mccarthy across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1905), then head of a 3-person household.
Age 25
b. ~1905
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | Helen W |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Clerk |
| Industry | Radio Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Town Of Hudson Part |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Nellie Mccarthy | Head | — | 53 | ~1877 |
| Helen Mccarthy | Daughter | — | 25 | ~1905 |
| Francis Mccarthy | Son | — | 22 | ~1908 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age 6
Middlesex, Massachusetts · implied b. ~1904 — 25 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Cook |
| Industry | Private Family |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 15
Middlesex, Massachusetts · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Carthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Year of Immigration | 1915 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 25
Middlesex, Massachusetts · implied b. ~1905 — 3 household members
| Surname | McCarthy |
| Given Name | Helen W |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Radio Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father John Mccarty (~0.92 confidence) and mother Mary Mccarty (~0.92 confidence) and mother Nellie Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mccarty
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Mary Mccarty
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Nellie Mccarthy
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Mccarthy
Daughter · 1930 · age 25 · b. ~1905 · Massachusetts
★ You are viewing this record
Sibling
Francis Mccarthy
Sibling · 1930 · age 22
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
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel919:0799)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Cornelia E Lund | 39 | Wife | — | Germany |
| 52 | Gertrude Dickman | 76 | Lodger | — | Maine |
| 53 | Gerson Amado | 28 | Lodger | Dishwasher | Albania |
| 54 | Herbert Rose | 51 | Head | Shoemaker | Massachusetts |
| 55 | Lydia Rose | 48 | Wife | — | Canada French |
| 56 | Mildred Rose | 16 | Daughter | — | Massachusetts |
| 57 | Michael Amado | 52 | Head | Proprietor | Albania |
| 58 | Angelo Christo | 45 | Lodger | Stitcher | Albania |
| 59 | Arthur Miller | 34 | Head | Stitcher | Massachusetts |
| 60 | Jean A Miller | 10 | Daughter | — | Massachusetts |
| 61 | Howard W Miller | 8 | Son | — | Massachusetts |
| 62 | Bernice L Miller | 6 | Daughter | — | Massachusetts |
| 63 | Walter Ethier | 26 | Brother | Heeler | Massachusetts |
| 64 | John Ethier | 76 | Uncle | Watchman | Canada English |
| 65 | Mary Silva | 58 | Lodger | Laster | Portugal |
| 66 | Mansueto Bergonzi | 50 | Head | — | Italy |
| 67 | Albert Bergonzi | 23 | Son | Laborer | Massachusetts |
| 68 | Edith Bergonzi | 19 | Daughter | Box Maker | Massachusetts |
| 69 | John Whiteside | 53 | Head | Woodworker | North Ireland |
| 70 | Kate Whiteside | 50 | Wife | Stitcher | Scotland |
| 71 | Alora L Gamache | 36 | Head | Stitcher | Massachusetts |
| 72 | John H Davis | 51 | Head | Woodworker | England |
| 73 | Rachel Davis | 48 | Wife | — | North Ireland |
| 74 | John R Davis | 24 | Son | Laborer | Massachusetts |
| 75 | Ernest H Davis | 14 | Son | — | Massachusetts |
| 76 | Norman L Davis | 7 | Son | — | Massachusetts |
| 77 | Albert H Walton | 52 | Head | Heel Maker | Canada English |
| 78 | Walter Queen | 45 | Head | Painter | Portugal |
| 79 | Olive Queen | 39 | Wife | — | Portugal |
| 80 | Lester Queen | 10 | Son | — | Massachusetts |
| 81 | Domenic Turri | 25 | Son-in-law | Heel Maker | Italy |
| 82 | Helen Turri | 22 | Daughter | Stitcher | Massachusetts |
| 83 | Charles H Sawyer | 52 | Head | Manager | Maine |
| 84 | Jennie P Sawyer | 44 | Wife | — | Massachusetts |
| 85 | Almira Houghton | 69 | Head | — | New Hampshire |
| 86 | Annie M Houghton | 47 | Wife | — | New Hampshire |
| 87 | Nellie Mccarthy | 53 | Head | Stitcher | Massachusetts |
| 88 | Helen W Mccarthy THIS PERSON | 25 | Daughter | Clerk | Massachusetts |
| 89 | Francis J Mccarthy | 22 | Son | Barber | Massachusetts |
| 90 | Thomas Smart | 51 | Head | Cutter | Maryland |
| 91 | Mary E Smart | 45 | Wife | Shoemaker | Massachusetts |
| 92 | John T Smart | 22 | Son | Sweeper | Massachusetts |
| 93 | Arthur Phaneuf | 40 | Head | Barber | Massachusetts |
| 94 | Emeline A Phaneuf | 31 | Wife | — | Vermont |
| 95 | Arthur Phaneuf | 13 | Son | — | Massachusetts |
| 96 | Eugene Phaneuf | 11 | Son | — | Massachusetts |
| 97 | Rita Phaneuf | 5 | Daughter | — | Massachusetts |
| 98 | A Gamache | 25 | Wife | Stitcher | Massachusetts |
| 99 | Agnes E Gamache | 41 | Head | Stitcher | Massachusetts |
| 100 | Joseph Gamache | 7 | Son | — | Massachusetts |
Pedigree Summary
Helen + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)