JM
John Mccarthy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Mccarthy across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 10-person household.
Age 56
b. ~1864
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | McCarthy |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Peddler |
| Industry | Produce |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1895 |
| Birthplace (normalized) | ireland |
| Occupation | Peddler |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1864 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Anna Mccarthy | Daughter | — | 27 | ~1893 |
| Catherine Mccarthy | Daughter | — | 17 | ~1903 |
| Bertha Mccarthy | Daughter | — | 6 | ~1914 |
| Mary Mccarthy | Daughter | — | 19 | ~1901 |
| John Mccarthy | Head | — | 56 | ~1864 |
| Jerome Mccarthy | Son | — | 12 | ~1908 |
| Harold Mccarthy | Son | — | 10 | ~1910 |
| John Mccarthy | Son | — | 23 | ~1897 |
| Hugh Mccarthy | Son | — | 8 | ~1912 |
| Anna Mccarthy | Spouse | — | 51 | ~1869 |
Census Appearances
1900
Middlesex, Massachusetts
Head, age 35
Middlesex, Massachusetts · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Oct |
| Birth Year | 1865 |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Head, age 45
Middlesex, Massachusetts · implied b. ~1865 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 23 |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Peddler |
| Industry | Street |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Head, age 56
Middlesex, Massachusetts · implied b. ~1864 — 10 household members
| Surname | McCarthy |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Peddler |
| Industry | Produce |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1895 |
| Birthplace (normalized) | ireland |
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 John Mccarthy across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
John Mccarthy
Head · 1920 · age 56 · b. ~1864 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
32 people indexed on this census page (ia:1920:14thcensusofpopu707unit:0616)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis Gochouski | 32 | Nephew | — | Massachusetts |
| 2 | Francis Gochouski | 67 | Lodger | Cook | Massachusetts |
| 3 | William Bristol | 47 | Lodger | Laborer | Newfoundland |
| 4 | John Kovaliauskas | 26 | Lodger | Laborer | Poland |
| 5 | Steve Urbalis | 36 | Lodger | Laborer | Poland |
| 6 | Nicholas Mylun | 22 | Lodger | Salesman | Massachusetts |
| 7 | Frank Correia | 15 | Son | — | Massachusetts |
| 8 | William Gomes | 15 | Guest | Laborer | Massachusetts |
| 9 | Henry Fong | 50 | Head | Proprietor | China |
| 10 | Martin J Ashley | 29 | Head | Laborer | Ireland |
| 11 | Margaret Ashley | 26 | Wife | Labeler | Ireland |
| 12 | John J Mccarthy THIS PERSON | 56 | Head | Peddler | Ireland |
| 13 | Anna Mccarthy | 51 | Wife | — | Ireland |
| 14 | Anna Mccarthy | 27 | Daughter | Factory Hand | Massachusetts |
| 15 | John Mccarthy | 23 | Son | Laborer | Massachusetts |
| 16 | Mary Mccarthy | 19 | Daughter | Factory Hand | Massachusetts |
| 17 | Catherine Mccarthy | 17 | Daughter | Factory Hand | Massachusetts |
| 18 | Jerome Mccarthy | 12 | Son | — | Massachusetts |
| 19 | Harold Mccarthy | 10 | Son | — | Massachusetts |
| 20 | Hugh Mccarthy | 8 | Son | — | Massachusetts |
| 21 | Bertha Mccarthy | 6 | Daughter | — | Massachusetts |
| 22 | Victor Marshall | 44 | Head | Barber | Portugal |
| 23 | Candida Marshall | 39 | Wife | — | Portugal |
| 24 | Alexander J Marshall | 18 | Son | Laborer | Massachusetts |
| 25 | James J Marshall | 17 | Son | Laborer | Massachusetts |
| 26 | Blanche G Marshall | 16 | Daughter | Cashier | Massachusetts |
| 27 | Mary C Marshall | 14 | Daughter | Factory Hand | Massachusetts |
| 28 | Bertha M Marshall | 12 | Daughter | — | Massachusetts |
| 29 | John De Arte | 40 | Head | Rubber Worker | Portugal |
| 30 | Caroline De Arte | 38 | Wife | — | Portugal |
| 31 | Americus De Arte | 3 | Daughter | — | Massachusetts |
| 32 | Alice P De Arte | 1 | Daughter | — | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)