TM
Thomas Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Thomas Mccarthy across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 13-person household.
Age 19
b. ~1911
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Clerk |
| Industry | Bread |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1911 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Mccarthy | Daughter | — | 3 | ~1927 |
| Rita Mccarthy | Daughter | — | ~1930 | |
| Dorothy Mccarthy | Daughter | — | 9 | ~1921 |
| Mary Mccarthy | Daughter | — | 16 | ~1914 |
| Eleanor Mccarthy | Daughter | — | 12 | ~1918 |
| Norah Mccarthy | Other | — | 39 | ~1891 |
| John Mccarthy | Head | — | 41 | ~1889 |
| Thomas Mccarthy | Son | — | 19 | ~1911 |
| Rose Mccarthy | Daughter | — | 1 | ~1929 |
| Margaret Mccarthy | Daughter | — | 14 | ~1916 |
| Winifred Mccarthy | Daughter | — | 4 | ~1926 |
| John Mccarthy | Son | — | 17 | ~1913 |
| Catherine Mccarthy | Daughter | — | 6 | ~1924 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 19
Middlesex, Massachusetts · implied b. ~1911 — 13 household members
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Bread |
| 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 Thomas Mccarthy across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mccarthy
Son · 1930 · age 19 · b. ~1911 · Massachusetts
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Sibling
Margaret Mccarthy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Mccarthy
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mccarthy
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mccarthy
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mccarthy
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mccarthy
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Mccarthy
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mccarthy
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mccarthy
Sibling · 1930 · age
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:massachusettscensus00reel915:0237)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Dwyer | 59 | Head | — | Ireland |
| 2 | Catherine Dwyer | 57 | Wife-H | — | Ireland |
| 3 | Anna C. Dwyer | 26 | Daughter | — | New York |
| 4 | John M. Dwyer | 21 | Son | Operator | Massachusetts |
| 5 | Richard B. Dwyer | 19 | Son | — | Massachusetts |
| 6 | John Mccarthy | 41 | Head | Salesman | Massachusetts |
| 7 | Norah Mccarthy | 39 | Wife-H | — | Massachusetts |
| 8 | Thomas Mccarthy THIS PERSON | 19 | Son | Clerk | Massachusetts |
| 9 | John Mccarthy | 17 | Son | Stock-Boy | Massachusetts |
| 10 | Mary Mccarthy | 16 | Daughter | Packer | Massachusetts |
| 11 | Margaret Mccarthy | 14 | Daughter | — | Massachusetts |
| 12 | Eleanor Mccarthy | 12 | Daughter | — | Massachusetts |
| 13 | Dorothy Mccarthy | 9 | Daughter | — | Massachusetts |
| 14 | Catherine Mccarthy | 6 | Daughter | — | Massachusetts |
| 15 | Winifred Mccarthy | 4 | Daughter | — | Massachusetts |
| 16 | Gertrude Mccarthy | 3 | Daughter | — | Massachusetts |
| 17 | Rose Mccarthy | 1 | Daughter | — | Massachusetts |
| 18 | Rita Mccarthy | 0 | Daughter | — | Massachusetts |
| 19 | Jeremiah F. Grady | 34 | Head | Police Officer | Massachusetts |
| 20 | Rita A. Grady | 34 | Wife-H | — | Massachusetts |
| 21 | Leo J. Grady | 8 | Son | — | Massachusetts |
| 22 | Dorothy T. Grady | 2 | Daughter | — | Massachusetts |
| 23 | Anthony George | 26 | Head | Laborer | Massachusetts |
| 24 | Antone George | 20 | Wife-H | — | Lithuania |
| 25 | Florence George | 3 | Daughter | — | Massachusetts |
| 26 | Lillian George | 2 | Daughter | — | Massachusetts |
| 27 | Rita George | 0 | Daughter | — | Massachusetts |
| 28 | Anthony Damusis | 45 | Head | Truck Driver | Lithuania |
| 29 | Antone Damusis | 43 | Wife-H | — | Lithuania |
| 30 | Eva Damusis | 15 | Daughter | — | Massachusetts |
| 31 | Minna Damusis | 12 | Daughter | — | Massachusetts |
| 32 | Frank Damusis | 10 | Son | — | Massachusetts |
| 33 | Annie Damusis | 9 | Daughter | — | Massachusetts |
| 34 | John Damusis | 3 | Son | — | Massachusetts |
| 35 | Timothy White | 55 | Boarder | Truck Driver | Lithuania |
| 36 | Stephen Baitonis | 42 | Boarder | Teamster | Lithuania |
| 37 | William Patkevitch | 27 | Boarder | Packer | Lithuania |
| 38 | James Dwyer | 36 | Head | Shoe-Cutter | Massachusetts |
| 39 | Helen Dwyer | 33 | Wife-H | — | Massachusetts |
| 40 | James Jr. Dwyer | 15 | Son | — | Massachusetts |
| 41 | Helen Dwyer | 14 | Daughter | — | Massachusetts |
| 42 | Evelyn Dwyer | 10 | Daughter | — | Massachusetts |
| 43 | Bernard Dwyer | 7 | Son | — | Massachusetts |
| 44 | Doris Dwyer | 4 | Daughter | — | Massachusetts |
| 45 | Daniel Lynch | 42 | Son-in-law | Janitor | Massachusetts |
| 46 | William Lynch | 48 | Son-in-law | Foreman | Massachusetts |
| 47 | Joseph D. Guinn | 39 | Head | Foreman | Massachusetts |
| 48 | Anna F. Guinn | 33 | Wife-H | — | Massachusetts |
| 49 | Eleanor G. Guinn | 13 | Daughter | — | Massachusetts |
| 50 | Mesrop Terzian | 52 | Head | Laborer | Armenia |
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)