RM
Robert Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Robert Mccarthy across the 1910, 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Albert & David — first a son (b.~1906), then head of a 8-person household.
Age 24
b. ~1906
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McCarthy |
| Given Name | Robert C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Chelsea City Pt Of |
| Est. Birth Year | ~1906 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Mccarthy | Daughter | — | 27 | ~1903 |
| John Mccarthy | Son | — | 25 | ~1905 |
| Edward Mccarthy | Son | — | 19 | ~1911 |
| Alice Mccarthy | Spouse | — | 41 | ~1889 |
| Robert Mccarthy | Son | — | 24 | ~1906 |
| Margaret Mccarthy | Daughter | — | 17 | ~1913 |
| Albert Mccarthy | Head | — | 47 | ~1883 |
| Margaret Mccarthy | Other | — | 48 | ~1882 |
Census Appearances
1910
Suffolk, Massachusetts
Son, age 3
Suffolk, Massachusetts · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 14
Suffolk, Massachusetts · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Robert E Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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
Suffolk, Massachusetts
Son, age 24
Suffolk, Massachusetts · implied b. ~1906 — 8 household members
| Surname | McCarthy |
| Given Name | Robert C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Hotel |
| 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 Robert Mccarthy across 3 US Census years (1910, 1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: father Albert Mccarthy (~0.92 confidence) and father David Mccarty (~0.92 confidence) and father Robert Mccarthy (~0.92 confidence) and mother Alice Mccarthy (~0.92 confidence) and mother Alice Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Mccarthy
b. ~1883
Source father
● Household
· direct · ~0.92
Father
David Mccarty
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Robert Mccarthy
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Alice Mccarthy
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Alice Mccarthy
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Mccarthy
Son · 1930 · age 24 · b. ~1906 · Massachusetts
★ You are viewing this record
Sibling
Edward Mccarthy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mccarthy
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccarthy
Sibling · 1930 · 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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel960:0543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Samuel H Atlas | 29 | Son-in-law | Salesman | England |
| 2 | Yetta Atlas | 26 | Daughter | — | Russia |
| 3 | George C Walker | 49 | Head | Rigger | Canada English |
| 4 | Annie Walker | 47 | Wife | — | Canada English |
| 5 | Marion E Walker | 21 | Daughter | Clerk | Massachusetts |
| 6 | John A Walker | 20 | Son | Electrician | Massachusetts |
| 7 | Annie G Walker | 18 | Daughter | Clerk | Massachusetts |
| 8 | Mildred J Walker | 17 | Daughter | — | Massachusetts |
| 9 | Elena Russell | 75 | Friend | — | Canada English |
| 10 | Ray L Macinnis | 38 | Head | Loader | Maine |
| 11 | Marion F Macinnis | 30 | Wife | — | Massachusetts |
| 12 | Marion F Macinnis | 6 | Daughter | — | Massachusetts |
| 13 | Samuel H Gagnon | 25 | Lodger | Labeler | New Hampshire |
| 14 | Dorothy M Gagnon | 22 | Lodger | Labeler | Massachusetts |
| 15 | Beatrice E Carley | 17 | Lodger | Labeler | Massachusetts |
| 16 | John J Gerard | 30 | Head | Chauffeur | Massachusetts |
| 17 | Edith G Gerard | 28 | Wife | — | Massachusetts |
| 18 | William E Armstrong | 51 | Head | Plumber | Massachusetts |
| 19 | Hattie A Armstrong | 51 | Wife | — | Maine |
| 20 | William F Armstrong | 20 | Son | Plumber | Massachusetts |
| 21 | Joseph G Tuthman | 29 | Son-in-law | Buyer | New Hampshire |
| 22 | Helen Tuthman | 28 | Daughter | — | Massachusetts |
| 23 | Betty Tuthman | 1 | Granddaughter | — | Massachusetts |
| 24 | Florence Simpson | 33 | Lodger | Teacher | Maine |
| 25 | Ivan C Simpson | 11 | Lodger | — | Virginia |
| 26 | Arthur F Douglass | 47 | Head | Undertaker Embalmer | Massachusetts |
| 27 | Frances E Douglass | 48 | Wife | — | Massachusetts |
| 28 | Albert F Douglass | 22 | Son | Undertaker | Massachusetts |
| 29 | Emma M Barrett | 46 | Sister-in-law | — | Massachusetts |
| 30 | Annie Myriam | 70 | Lodger | — | Massachusetts |
| 31 | Harold W Powers | 34 | Head | Boilermaker | Canada English |
| 32 | Anna C Powers | 35 | Wife | — | Massachusetts |
| 33 | Frank C Robinson | 38 | Brother-in-law | Helper | Massachusetts |
| 34 | Mary A Robinson | 32 | Sister-in-law | — | Massachusetts |
| 35 | Kristine Robinson | 24 | Sister-in-law | — | Massachusetts |
| 36 | Warren J Powers | 7 | Nephew | — | Massachusetts |
| 37 | Allen R Powers | 4 | Nephew | — | Massachusetts |
| 38 | Albert C Mccarthy | 47 | Head | Police Officer | Massachusetts |
| 39 | Alice M Mccarthy | 41 | Wife | — | Massachusetts |
| 40 | Alice J Mccarthy | 27 | Daughter | Secretary | Massachusetts |
| 41 | Robert C Mccarthy THIS PERSON | 24 | Son | Clerk | Massachusetts |
| 42 | John E Mccarthy | 25 | Son | — | Massachusetts |
| 43 | Edward A Mccarthy | 19 | Son | Inventory | Massachusetts |
| 44 | Margaret A Mccarthy | 17 | Daughter | — | Massachusetts |
| 45 | Margaret A Mccarthy | 48 | Sister-in-law | — | Massachusetts |
| 46 | David Katz | 55 | Head | Tailor | Russia |
| 47 | Bessie Katz | 55 | Wife | — | Russia |
| 48 | Harry Katz | 26 | Son | — | Massachusetts |
| 49 | Celia Katz | 26 | Daughter | Clerk | Massachusetts |
| 50 | Florence Katz | 18 | Daughter | — | Massachusetts |
Pedigree Summary
Robert + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)