RM
Robert Mccarthy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Robert Mccarthy across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1925 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marion Mccarthy | Daughter | — | 21 | ~1919 |
| Richard Mccarthy | Son | — | 14 | ~1926 |
| Mary Mccarthy | Spouse | — | 48 | ~1892 |
| Robert Mccarthy | Son | — | 15 | ~1925 |
| Margaret Mccarthy | Daughter | — | 10 | ~1930 |
| Edward Mccarthy | Son | — | 20 | ~1920 |
| Ruth Mccarthy | Daughter | — | 17 | ~1923 |
| Michael Mccarthy | Head | — | 48 | ~1892 |
| Thomas Mccarthy | Son | — | 19 | ~1921 |
Census Appearances
1930
Worcester, Massachusetts
Son, age 4
Worcester, Massachusetts · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Industry | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 15
Worcester-County, Massachusetts · implied b. ~1925 — 9 household members
| Surname | McCarthy |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Highest Grade | H 1 |
| 1935 Residence | Same House |
| 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 Robert Mccarthy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mccarthy
Son · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Thomas Mccarthy
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Mccarthy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mccarthy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Mccarthy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccarthy
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Mccarthy
Sibling · 1940 · 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
1940 US Federal Census — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01716-00195)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa J. Skinner | 13 | Daughter | — | Massachusetts |
| 42 | Elsie A. Skinner | 10 | Daughter | — | Massachusetts |
| 43 | Andrew | 63 | Head | — | Massachusetts |
| 44 | Eva | 53 | Wife | — | Massachusetts |
| 45 | Eugene A. | 23 | Son | — | Massachusetts |
| 46 | Annie E. | 21 | Daughter | — | Massachusetts |
| 47 | Robert J. | 19 | Son | Farm Worker | Massachusetts |
| 48 | Thomas Hill | 46 | Head | Laborer | Irish Free State |
| 49 | Nora Hill | 40 | Wife | — | Irish Free State |
| 50 | Beatrice M. Hill | 12 | Daughter | — | Massachusetts |
| 51 | Reginald T. Hill | 10 | Son | — | Massachusetts |
| 52 | Dorothy A. Hill | 7 | Daughter | — | Massachusetts |
| 53 | Joan M. Hill | 5 | Daughter | — | Massachusetts |
| 54 | Michael Mccarthy | 48 | Head | Laborer | Massachusetts |
| 55 | Mary E. Mccarthy | 48 | Wife | — | Massachusetts |
| 56 | Marion F. Mccarthy | 21 | Daughter | — | Massachusetts |
| 57 | Edward J. Mccarthy | 20 | Son | Farm Worker | Massachusetts |
| 58 | Thomas Mccarthy | 19 | Son | Laborer | Massachusetts |
| 59 | Ruth G. Mccarthy | 17 | Daughter | — | Massachusetts |
| 60 | Robert A. Mccarthy THIS PERSON | 15 | Son | — | Massachusetts |
| 61 | Richard M. Mccarthy | 14 | Son | — | Massachusetts |
| 62 | Margaret E. Mccarthy | 10 | Daughter | — | Massachusetts |
| 63 | William F. Spencer | 54 | Head | Laborer | Massachusetts |
| 64 | Agnes B. Spencer | 48 | Wife | — | Irish Free State |
| 65 | Dorothy J. Spencer | 20 | Daughter | Sales Girl | Massachusetts |
| 66 | Joseph O'Brien | 52 | Head | Laborer | Massachusetts |
| 67 | Mary B. O'Brien | 45 | Wife | — | Canada French |
| 68 | James H. O'Brien | 21 | Son | Laborer | Massachusetts |
| 69 | William F. O'Brien | 23 | Son | Laborer | Massachusetts |
| 70 | Rita S. O'Brien | 19 | Daughter | — | Massachusetts |
| 71 | Fred M. O'Brien | 18 | Daughter | Housekeeper | Massachusetts |
| 72 | Elsie M. O'Brien | 15 | Daughter | — | Massachusetts |
| 73 | Edward J. O'Brien | 12 | Son | — | Massachusetts |
| 74 | Donald M. O'Brien | 11 | Son | — | Massachusetts |
| 75 | George J. O'Brien | 6 | Son | — | Massachusetts |
| 76 | Elizabeth M. O'Brien | 4 | Daughter | — | Massachusetts |
| 77 | Benjamin Bingham | 39 | Head | Laborer | England |
| 78 | Flora H. Bingham | 35 | Wife | — | Rhode Island |
| 79 | Mary H. Bingham | 12 | Daughter | — | Massachusetts |
| 80 | Helen Bingham | 10 | Daughter | — | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)