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Helen Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Helen Mccarthy across the 1910, 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed), with identified parents Dennis & James — first a daughter (b.~1905), then head of a 10-person household.
Age 25
b. ~1905
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | McCarthy |
| Given Name | Helen |
| 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 | Twisting |
| Industry | Flax mill |
| Class of Worker | 7755 |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Twisting |
| Township / Ward | Andover Town |
| 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Mccarthy | Daughter | — | 13 | ~1917 |
| Helen Mccarthy | Daughter | — | 25 | ~1905 |
| Mary Mccarthy | Daughter | — | 23 | ~1907 |
| Dorothy Mccarthy | Daughter | — | 22 | ~1908 |
| Rose Mccarthy | Other | — | 50 | ~1880 |
| Francis Mccarthy | Son | — | 19 | ~1911 |
| Timothy Mccarthy | Head | — | 59 | ~1871 |
| Timothy Mccarthy | Son | — | 15 | ~1915 |
| Millard Mccarthy | Son | — | 20 | ~1910 |
| Margaret Mccarthy | Daughter | — | 17 | ~1913 |
Census Appearances
1910
Essex, Massachusetts
Daughter, age 3
Essex, Massachusetts · implied b. ~1907 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Daughter, age 13
Essex, Massachusetts · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 25
Essex, Massachusetts · implied b. ~1905 — 10 household members
| Surname | McCarthy |
| Given Name | Helen |
| 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 | Twisting |
| Industry | Flax mill |
| Class of Worker | 7755 |
| 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 Essex, Massachusetts, using XGBoost record linkage. Identified parents: father Dennis Mccarthy (~0.92 confidence) and father James Mccarthy (~0.92 confidence) and father Timothy Mccarthy (~0.92 confidence) and mother Ida Mccarthy (~0.92 confidence) and mother Margaret Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dennis Mccarthy
b. ~1869
Source father
● Household
· direct · ~0.92
Father
James Mccarthy
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Timothy Mccarthy
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ida Mccarthy
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mccarthy
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Mccarthy
Daughter · 1930 · age 25 · b. ~1905 · Massachusetts
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Sibling
Evelyn Mccarthy
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Millard Mccarthy
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Mccarthy
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mccarthy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mccarthy
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mccarthy
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccarthy
Sibling · 1930 · age 17
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 — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel894:1023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | George L. Abbott | 45 | Head | Orchard | Massachusetts |
| 52 | Florence Abbott | 39 | Wife-H | — | Massachusetts |
| 53 | Richard Abbott | 11 | Son | — | Massachusetts |
| 54 | Dorothy Abbott | 12 | Daughter | — | Massachusetts |
| 55 | Mary Abbott | 72 | Mother | — | Massachusetts |
| 56 | Florence Abbott | 56 | Sister | Teacher | Massachusetts |
| 57 | James Keerney | 68 | Head | Retired | Newfoundland |
| 58 | Margaret Murphy | 61 | Sister | Dressmaker | Newfoundland |
| 59 | Mona Murphy | 27 | Niece | Stenographer | Newfoundland |
| 60 | Michael Dwyer | 55 | Head | Truck Driver | Massachusetts |
| 61 | Annie Dwyer | 54 | Wife-H | — | Massachusetts |
| 62 | Esther Dwyer | 29 | Daughter | Music Teacher | Nebraska |
| 63 | Joseph Dwyer | 25 | Son | Marine | Nebraska |
| 64 | Mildred Dwyer | 21 | Daughter | Clerk | Nebraska |
| 65 | Edward Dwyer | 19 | Son | Clerk | Nebraska |
| 66 | Mary Dwyer | 17 | Daughter | — | Nebraska |
| 67 | Timothy Mccarthy | 59 | Head | Box Maker | Massachusetts |
| 68 | Rose Mccarthy | 50 | Wife-H | — | Massachusetts |
| 69 | Helen Mccarthy THIS PERSON | 25 | Daughter | Twisting | Massachusetts |
| 70 | Mary F. Mccarthy | 23 | Daughter | Stenographer | Massachusetts |
| 71 | Dorothy Mccarthy | 22 | Daughter | — | Massachusetts |
| 72 | Millard Mccarthy | 20 | Son | Special Delivery | Massachusetts |
| 73 | Francis Mccarthy | 19 | Son | Mechanic | Massachusetts |
| 74 | Margaret Mccarthy | 17 | Daughter | — | Massachusetts |
| 75 | Timothy Albert Mccarthy | 15 | Son | — | Massachusetts |
| 76 | Evelyn Mccarthy | 13 | Daughter | — | Massachusetts |
| 77 | Mary Robinson | 58 | Head-H | — | Massachusetts |
| 78 | John Robinson | 19 | Son | — | Massachusetts |
| 79 | Mary Robinson | 17 | Daughter | — | Massachusetts |
| 80 | Alice Robinson | 14 | Daughter | — | Massachusetts |
| 81 | Alexander Mildie | 43 | Head | Chauffeur | Scotland |
| 82 | Elin Mildie | 39 | Wife-H | — | Sweden |
| 83 | George Mildie | 16 | Son | — | Massachusetts |
| 84 | Anna Mildie | 14 | Daughter | — | Massachusetts |
| 85 | Jane Mildie | 12 | Daughter | — | Massachusetts |
| 86 | Daniel Hartigan | 35 | Head | Druggist | Massachusetts |
| 87 | Genevieve Hartigan | 35 | Wife-H | — | Massachusetts |
| 88 | Isaiah D. Kimball | 47 | Head | Manager | Massachusetts |
| 89 | Nellie Kimball | 45 | Wife-H | — | Massachusetts |
| 90 | Madeline Kimball | 18 | Daughter | — | Massachusetts |
| 91 | William Kimball | 15 | Son | — | Massachusetts |
| 92 | Helen Kimball | 10 | Daughter | — | Massachusetts |
| 93 | William Mcintosh | 41 | Head | Rubber Worker | Northern Ireland |
| 94 | Mary Mcintosh | 41 | Wife-H | — | Northern Ireland |
| 95 | Ellen Bolon | 61 | Head-H | — | Massachusetts |
| 96 | Henry Bolon | 35 | Son | Bookkeeper | Massachusetts |
| 97 | Catherine Bolon | 23 | Daughter | Clerk | Massachusetts |
| 98 | William Bolon | 22 | Son | Clerk | Massachusetts |
| 99 | Harry Chadwick | 42 | Head | Janitor | England |
| 100 | Margaret Chadwick | 42 | Wife-H | — | Scotland |
Pedigree Summary
Helen + 7 siblings
Gen 1 · 5 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)