WM
William Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this William Mccarthy across the 1920 and 1930 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1908), then head of a 9-person household.
Age 22
b. ~1908
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | McCarthy |
| Given Name | William H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | Laborer |
| Industry | Dairy Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Middleborough |
| Est. Birth Year | ~1908 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Emeline Mccarthy | Daughter | — | 24 | ~1906 |
| Michael Mccarthy | Head | — | 42 | ~1888 |
| Mabel Mccarthy | Other | — | 47 | ~1883 |
| Dolores Goss | Other | — | 1 | ~1929 |
| Thomas Mccarthy | Son | — | 27 | ~1903 |
| George Mccarthy | Son | — | 7 | ~1923 |
| Edward Mccarthy | Son | — | 19 | ~1911 |
| Vincent Mccarthy | Son | — | 16 | ~1914 |
| William Mccarthy | Son | — | 22 | ~1908 |
Census Appearances
1920
Plymouth, Massachusetts
Son, age 11
Plymouth, Massachusetts · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Son, age 22
Plymouth, Massachusetts · implied b. ~1908 — 9 household members
| Surname | McCarthy |
| Given Name | William H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Occupation | Laborer |
| Industry | Dairy Farm |
| 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 William Mccarthy across 2 US Census years (1920 and 1930) in Plymouth, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Mccarthy
Son · 1930 · age 22 · b. ~1908 · Massachusetts
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Sibling
Thomas Mccarthy
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mccarthy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Mccarthy
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emeline Mccarthy
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Mccarthy
Sibling · 1930 · age 7
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 — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel940:0578)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary J. Ormsby | 86 | Mother | — | Ireland-Free State |
| 52 | Roland E. Ormsby | 14 | Nephew | — | Maine |
| 53 | Clinton B. Gates | 54 | Head | Farmer | Massachusetts |
| 54 | Agnes B. Gates | 41 | Wife-H | — | Massachusetts |
| 55 | Ruth E. Gates | 4 | Daughter | — | Massachusetts |
| 56 | Alexander F. Yellonvsky | 36 | Head | Heeler | Russia-Lithuania |
| 57 | Anna J. Yellonvsky | 33 | Wife-H | — | Russia-Lithuania |
| 58 | Nellie A. Yellonvsky | 8 | Daughter | — | Massachusetts |
| 59 | Albert R. Yellonvsky | 6 | Son | — | Massachusetts |
| 60 | Lillian Yellonvsky | 4 | Daughter | — | Massachusetts |
| 61 | Alice J. Yellonvsky | 2 | Daughter | — | Massachusetts |
| 62 | Alton S. Freeman | 50 | Head | — | Massachusetts |
| 63 | Bertha E. Freeman | 50 | Wife-H | — | Massachusetts |
| 64 | Edward A. Freeman | 11 | Son | — | Massachusetts |
| 65 | Michael V. Mccarthy | 42 | Head | Farm Owner | Massachusetts |
| 66 | Mabel G. Mccarthy | 47 | Wife-H | — | Massachusetts |
| 67 | Thomas P. Sr. Mccarthy | 27 | Son | Laborer | Massachusetts |
| 68 | Emeline J. Mccarthy | 24 | Daughter | — | Massachusetts |
| 69 | William H. Jr. Mccarthy THIS PERSON | 22 | Son | Laborer | Massachusetts |
| 70 | Edward J. Mccarthy | 19 | Son | Laborer | Massachusetts |
| 71 | Vincent J. Mccarthy | 16 | Son | Laborer | Massachusetts |
| 72 | George L. Mccarthy | 7 | Son | — | Massachusetts |
| 73 | Dolores L. Goss | 1 | Granddau. | — | Massachusetts |
| 74 | George E. Beals | 45 | Head | Farm Owner | Canada-English |
| 75 | Zylpha E. Beals | 40 | Wife-H | — | Canada-English |
| 76 | Zylpha A. Beals | 15 | Daughter | — | Canada-English |
| 77 | Phyllis G. Beals | 9 | Daughter | — | Canada-English |
| 78 | Thelma W. Beals | 7 | Daughter | — | Canada-English |
| 79 | Archie B. Foote | 21 | Bro-in-law | Laborer | Canada-English |
| 80 | George A. Deane | 50 | Head | Manager | Massachusetts |
| 81 | Florence W. Deane | 53 | Wife-H | — | Massachusetts |
| 82 | Joseph W. Newton | 22 | Boarder | Chauffeur | Massachusetts |
| 83 | Arthur F. Benson | 16 | Laborer | Laborer | Massachusetts |
| 84 | Harry E. Smith | 36 | Head | Steam Fitter | Massachusetts |
| 85 | Elizabeth B. Smith | 25 | Wife-H | — | Connecticut |
| 86 | Harry E. Jr. Smith | 2 | Son | — | Rhode Island |
| 87 | Eugene E. Smith | 0 | Son | — | Connecticut |
| 88 | Arthur K. Angell | 47 | Head | Farm Owner | Rhode Island |
| 89 | Mary L. Angell | 39 | Wife-H | — | Massachusetts |
| 90 | Dwight P. Kinsman | 47 | Head | Farm Owner | Canada-English |
| 91 | Mabel J. Kinsman | 45 | Wife-H | — | Canada-English |
| 92 | Richard M. Sr. Kinsman | 19 | Son | — | Massachusetts |
| 93 | Leah D. Kinsman | 12 | Daughter | — | Massachusetts |
| 94 | Frank Holobey | 45 | Head | Farm Owner | Russia-Poland |
| 95 | Gladys Holobey | 48 | Wife-H | — | Russia-Poland |
| 96 | Annie Holobey | 20 | Daughter | — | Pennsylvania |
| 97 | Michael M. Holobey | 19 | Son | Laborer | Massachusetts |
| 98 | Loretta Holobey | 17 | Daughter | — | Massachusetts |
| 99 | Celia Holobey | 12 | Daughter | — | Massachusetts |
| 100 | Felicia Holobey | 11 | Daughter | — | 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)