WM
William Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this William Mccarthy across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 11
b. ~1919
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Medford City |
| Est. Birth Year | ~1919 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Rita Mccarthy | Daughter | — | 13 | ~1917 |
| Alice Mccarthy | Daughter | — | 14 | ~1916 |
| Daniel Mccarthy | Head | — | 50 | ~1880 |
| Bernard Mccarthy | Son | — | 19 | ~1911 |
| James Mccarthy | Son | — | 8 | ~1922 |
| Neil Mccarthy | Son | — | 22 | ~1908 |
| Joseph Mccarthy | Son | — | 17 | ~1913 |
| Robert Mccarthy | Son | — | 7 | ~1923 |
| William Mccarthy | Son | — | 11 | ~1919 |
| Alice Mccarthy | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age
Middlesex, Massachusetts · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 10 household members
| Surname | McCarthy |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| 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 William Mccarthy across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Mccarthy
Son · 1930 · age 11 · b. ~1919 · Massachusetts
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Sibling
Bernard Mccarthy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neil Mccarthy
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mccarthy
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mccarthy
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mccarthy
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mccarthy
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mccarthy
Sibling · 1930 · age 14
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:massachusettscensus00reel924:0162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rose M Fusco | 24 | Daughter | — | Massachusetts |
| 52 | Alexander French | 76 | Head | — | Canada-English |
| 53 | Nancy French | 76 | Wife | — | Canada-English |
| 54 | Helen French | 24 | Daughter | Teacher | Massachusetts |
| 55 | Charles E Draper | 53 | Head | Wood Turner | Maine |
| 56 | Elizabeth C Draper | 77 | Mother | — | Maine |
| 57 | Isabel Draper | 25 | Daughter | Typist | Massachusetts |
| 58 | Eileen D Stacey | 26 | Daughter | Stenographer | Massachusetts |
| 59 | George F Gainsford | 60 | Lodger | Caretaker | Massachusetts |
| 60 | Estella M Gainsford | 47 | Sister | — | Maine |
| 61 | Theresa D Kirk | 83 | Boarder | — | Maine |
| 62 | Daniel Mccarthy | 50 | Head | Captain | Newfoundland |
| 63 | Alice Mccarthy | 44 | Wife | — | Newfoundland |
| 64 | Neil Mccarthy | 22 | Son | Clerk | Massachusetts |
| 65 | Bernard Mccarthy | 19 | Son | Draftsman | Massachusetts |
| 66 | Joseph Mccarthy | 17 | Son | — | Massachusetts |
| 67 | Alice Mccarthy | 14 | Daughter | — | Massachusetts |
| 68 | Rita Mccarthy | 13 | Daughter | — | Massachusetts |
| 69 | William Mccarthy THIS PERSON | 11 | Son | — | Massachusetts |
| 70 | James Mccarthy | 8 | Son | — | Massachusetts |
| 71 | Robert Mccarthy | 7 | Son | — | Massachusetts |
| 72 | Everett Taylor | 36 | Head | Mech Engineer | Massachusetts |
| 73 | Charlotte Taylor | 26 | Wife | Clerical Worker | Massachusetts |
| 74 | Charles Ryan | 54 | Lodger | Dish Washer | Massachusetts |
| 75 | Herman Shurman | 42 | Head | Manager | Germany |
| 76 | Theodora M Shurman | 25 | Wife | — | Massachusetts |
| 77 | Annette D Shurman | 5 | Daughter | — | Massachusetts |
| 78 | John Craven | 48 | Head | Motorman | Irish Free State |
| 79 | Margaret Craven | 42 | Wife | — | Irish Free State |
| 80 | Thomas Craven | 15 | Son | — | Massachusetts |
| 81 | John Craven | 11 | Son | — | Massachusetts |
| 82 | Margaret M Craven | 8 | Daughter | — | Massachusetts |
| 83 | Herbert N Noyes | 43 | Head | Captain Masonry | New Hampshire |
| 84 | Agnes M Noyes | 37 | Wife | — | New Hampshire |
| 85 | Ruth J Noyes | 11 | Daughter | — | New Hampshire |
| 86 | Annie M Flynn | 20 | Head | Stenographer | Massachusetts |
| 87 | Annie M Flynn | 46 | Mother | — | Irish Free State |
| 88 | James O'Connor | 32 | Uncle | Laborer | Irish Free State |
| 89 | Denis F Anthony | 28 | Lodger | Shipper | Massachusetts |
| 90 | John Wardrope | 43 | Head | Foreman | Scotland |
| 91 | Julia Wardrope | 35 | Wife | — | Canada-English |
| 92 | George Wardrope | 13 | Son | — | Massachusetts |
| 93 | Clarence D Gordon | 50 | Head | Asst Metallurgist | Massachusetts |
| 94 | Jessie Gordon | 41 | Wife | — | Canada-English |
| 95 | George Gordon | 69 | Father | — | Canada-English |
| 96 | Fred J Fabrizio | 41 | Head | Letter Carrier | Massachusetts |
| 97 | Jeanne Fabrizio | 38 | Wife | — | Belgium |
| 98 | Jeannette Fabrizio | 13 | Daughter | — | Massachusetts |
| 99 | Lucille Fabrizio | 10 | Daughter | — | Massachusetts |
| 100 | Albert W Vye | 78 | Head | — | Massachusetts |
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)