EM
Elizabeth Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Elizabeth Mccarthy across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 11-person household.
Age 27
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | Elizabeth R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teacher |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1903 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Elizabeth | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mccarthy | Son | — | 37 | ~1893 |
| John Mccarthy | Son | — | 30 | ~1900 |
| Charles Mccarthy | Son | — | 40 | ~1890 |
| John Brennan | Other | — | 55 | ~1875 |
| Ethel Mccarthy | Daughter | — | 24 | ~1906 |
| Leo Mccarthy | Son | — | 35 | ~1895 |
| Jeremiah Mccarthy | Head | — | 65 | ~1865 |
| Elizabeth Mccarthy | Spouse | — | 63 | ~1867 |
| Mary Mccarthy | Daughter | — | 21 | ~1909 |
| Julia Mccarthy | Daughter | — | 22 | ~1908 |
| Elizabeth Mccarthy | Daughter | — | 27 | ~1903 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 18
Middlesex, Massachusetts · implied b. ~1902 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| 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
Middlesex, Massachusetts
Daughter, age 27
Middlesex, Massachusetts · implied b. ~1903 — 11 household members
| Surname | McCarthy |
| Given Name | Elizabeth R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Elizabeth Mccarthy across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Elizabeth Mccarthy
Daughter · 1930 · age 27 · b. ~1903 · Massachusetts
★ You are viewing this record
Sibling
Ethel Mccarthy
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mccarthy
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Mccarthy
Sibling · 1930 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mccarthy
Sibling · 1930 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mccarthy
Sibling · 1930 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia 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:massachusettscensus00reel921:0929)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William E Potter | 55 | Head | Retired | Massachusetts |
| 2 | Helen M Potter | 68 | Sister | — | New York |
| 3 | Elizabeth Smith | 45 | Housekeeper | Housekeeper | Massachusetts |
| 4 | Minnie S Vaillant | 80 | Head | Retired | Ohio |
| 5 | Fannie Manson | 65 | Housekeeper | Housekeeper | Massachusetts |
| 6 | Robert W Duff | 36 | Head | Machinist | Massachusetts |
| 7 | Alice A Duff | 36 | Wife | — | Massachusetts |
| 8 | Elsie M Duff | 11 | Daughter | — | Massachusetts |
| 9 | Reginald C Box | 36 | Head | Tool Maker | Massachusetts |
| 10 | Jane F Box | 46 | Wife | — | Massachusetts |
| 11 | Reginald C Jr Box | 8 | Son | — | Massachusetts |
| 12 | Lilla J Popham | 41 | Head | — | Massachusetts |
| 13 | Helen Snow | 26 | Roomer | Teacher | Massachusetts |
| 14 | Muriel Ware | 20 | Roomer | — | Massachusetts |
| 15 | Elizabeth Grosby | 19 | Roomer | — | Massachusetts |
| 16 | Frederick Smith | 52 | Head | Supervisor | Virginia |
| 17 | Ruth M Smith | 38 | Wife | — | Maine |
| 18 | Frederick G Smith | 24 | Son | — | Massachusetts |
| 19 | Elizabeth S Smith | 12 | Daughter | — | Massachusetts |
| 20 | Hazel Young | 39 | Head | Stenographer | Massachusetts |
| 21 | Earl W Young | 12 | Son | — | Massachusetts |
| 22 | Frances W Young | 12 | Son | — | Massachusetts |
| 23 | James Kramer | 55 | Head | Foreman | Russia |
| 24 | Bertha Kramer | 53 | Wife | — | Russia |
| 25 | Morris Kramer | 22 | Son | Bookkeeper | Massachusetts |
| 26 | James Kramer | 17 | Son | Clerk | Massachusetts |
| 27 | Charles G Goodwin | 39 | Head | Conductor | Maine |
| 28 | Beatrice L Goodwin | 38 | Wife | — | England |
| 29 | Robert G Goodwin | 14 | Son | — | Maine |
| 30 | Shirley A Goodwin | 12 | Daughter | — | Maine |
| 31 | Philip V Goodwin | 7 | Son | — | Florida |
| 32 | Jeremiah J Mccarthy | 65 | Head | Retired | Massachusetts |
| 33 | Elizabeth F Mccarthy | 63 | Wife | — | Massachusetts |
| 34 | Charles J Mccarthy | 40 | Son | Foreman | Massachusetts |
| 35 | Thomas G Mccarthy | 37 | Son | Engineer | Massachusetts |
| 36 | Leo H Mccarthy | 35 | Son | Clerk (Sales) | Massachusetts |
| 37 | John F Mccarthy | 30 | Son | Clerk (Sales) | Massachusetts |
| 38 | Elizabeth R Mccarthy THIS PERSON | 27 | Daughter | Teacher | Massachusetts |
| 39 | Ethel R Mccarthy | 24 | Daughter | Teacher | Massachusetts |
| 40 | Mary T Mccarthy | 21 | Daughter | — | Massachusetts |
| 41 | Julia K Mccarthy | 22 | Daughter | Teacher | Massachusetts |
| 42 | John Brennan | 55 | Brother-in-law | Clerk (Sales) | Massachusetts |
| 43 | Katherine M Scannell | 50 | Head | Asst. Librarian | Massachusetts |
| 44 | Hannah T Scannell | 75 | Aunt | — | Maine |
| 45 | Lizzie Scannell | 75 | Aunt | Inspector | Massachusetts |
| 46 | Albert D Milliken | 59 | Head | Agent | Massachusetts |
| 47 | Elizabeth N Milliken | 58 | Wife | — | Massachusetts |
| 48 | Benjamin J Bernard | 57 | Head | Tailor | Canada French |
| 49 | Lila Bernard | 55 | Wife | — | Canada English |
| 50 | Benjamin H Bernard | 28 | Son | Sign Painter | Massachusetts |
Related Census Records
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)