CM
Charles Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Charles Mccarthy across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles — first a head (b.~1900), then head of a 11-person household.
Age 40
b. ~1900
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Lowell |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Pumpman |
| Industry | Sewer Project |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 702 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Pumpman |
| Township / Ward | City Of Lowell |
| Est. Birth Year | ~1900 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Ronald Mccarthy | Son | — | 4 | ~1936 |
| Richard Mccarthy | Son | — | 7 | ~1933 |
| Gerald Mccarthy | Son | — | 1 | ~1939 |
| Donald Mccarthy | Son | — | 1 | ~1939 |
| Charles Mccarthy | Head | — | 40 | ~1900 |
| Charles Mccarthy | Son | — | 12 | ~1928 |
| Mary Bean | Other | — | 26 | ~1914 |
| Rita Bean | Other | — | 15 | ~1925 |
| Mary Mccarthy | Daughter | — | 11 | ~1929 |
| Irene Mccarthy | Spouse | — | 30 | ~1910 |
| Elizabeth Gavin | Other | — | 68 | ~1872 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 20
Middlesex, Massachusetts · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Charles |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Laborer |
| Industry | Government |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 31
Middlesex, Massachusetts · implied b. ~1899 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Trust Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 40
Middlesex-County, Massachusetts · implied b. ~1900 — 11 household members
| Surname | McCarthy |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Lowell |
| 1935 Residence (County) | Middlesex |
| Occupation | Pumpman |
| Industry | Sewer Project |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 702 |
| Highest Grade | No 8 |
| 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 Charles Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mccarthy
b. ~1870
Source father
● Household
· direct · ~0.92
This person
Anchor record
Charles Mccarthy
Head · 1940 · age 40 · b. ~1900 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01691-00780)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Watson | 12 | Head | — | Massachusetts |
| 42 | Esther M Watson | 7 | Daughter | — | Massachusetts |
| 43 | Duncan C Watson | 5 | Son | — | Massachusetts |
| 44 | William Fehls | 31 | Head | Laborer | Massachusetts |
| 45 | Lillian Fehls | 32 | Wife | — | Massachusetts |
| 46 | Barbara Fehls | 5 | Daughter | — | Massachusetts |
| 47 | William Fehls | 4 | Son | 0 | Massachusetts |
| 48 | Robert Fehls | 3 | Son | 0 | Massachusetts |
| 49 | John J O'Malley | 38 | Head | Labor Foreman | Massachusetts |
| 50 | Mary C O'Malley | 29 | Wife | — | Massachusetts |
| 51 | John O'Malley | 7 | Daughter | — | Massachusetts |
| 52 | Ruth O'Malley | 5 | Daughter | — | Massachusetts |
| 53 | James O'Malley | 3 | Son | 0 | Massachusetts |
| 54 | Melvina Dumont | 53 | Head | — | New Hampshire |
| 55 | Marion Dumont | 23 | Daughter | Weaver | Massachusetts |
| 56 | George J Dumont | 20 | Son | Laborer | Massachusetts |
| 57 | Cecelia Dumont | 12 | Daughter | — | Massachusetts |
| 58 | Charles Mccarthy THIS PERSON | 40 | Head | Pumpman | Massachusetts |
| 59 | Irene L Mccarthy | 30 | Wife | — | Massachusetts |
| 60 | Charles Mccarthy | 12 | Son | — | Massachusetts |
| 61 | Mary Mccarthy | 11 | Daughter | — | Massachusetts |
| 62 | Richard Mccarthy | 7 | Son | — | Massachusetts |
| 63 | Ronald Mccarthy | 4 | Son | 0 | Massachusetts |
| 64 | Gerald Mccarthy | 1 | Son | 0 | Massachusetts |
| 65 | Donald Mccarthy | 1 | Son | 0 | Massachusetts |
| 66 | Rita Bean | 15 | Sister-in-law | — | Massachusetts |
| 67 | Mary Bean | 26 | Sister-in-law | — | Massachusetts |
| 68 | Elizabeth Gavin | 68 | Aunt | — | England |
| 69 | Edgar W Gordon | 57 | Head | Cutter | Massachusetts |
| 70 | Ethel Gordon | 32 | Wife | — | Massachusetts |
| 71 | Lorraine Gordon | 11 | Daughter | — | Massachusetts |
| 72 | James Gordon | 10 | Son | — | Massachusetts |
| 73 | Edgar Jr Gordon | 8 | Son | — | Massachusetts |
| 74 | Raymond Gordon | 6 | Son | — | Massachusetts |
| 75 | Catherine Lynch | 49 | Head | Spinner | Massachusetts |
| 76 | William Lynch | 47 | Brother | — | Massachusetts |
| 77 | Bertram Roberts | 51 | Head | Stationary Engineer | Massachusetts |
| 78 | Dorothy Roberts | 42 | Wife | — | Massachusetts |
| 79 | William Roberts | 19 | Son | Gill Box Tender | Maine |
| 80 | Frederick Roberts | 16 | Son | — | Maine |
Pedigree Summary
Charles
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)