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Catherine Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Catherine Mccarthy across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & John — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | file clerk |
| Industry | paper company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | File Clerk |
| Township / Ward | Boston City |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Helen Mccarthy | Head | — | 45 | ~1895 |
| Louise Mccarthy | Daughter | — | 8 | ~1932 |
| John Mccarthy | Son | — | 19 | ~1921 |
| Joseph Mccarthy | Son | — | 6 | ~1934 |
| Mary Mccarthy | Daughter | — | 16 | ~1924 |
| Catherine Mccarthy | Daughter | — | 20 | ~1920 |
| Helen Mccarthy | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age
Suffolk, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Catherine T. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 20
Suffolk-County, Massachusetts · implied b. ~1920 — 7 household members
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | file clerk |
| Industry | paper company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 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 Catherine 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) and father John Mccarthy (~0.92 confidence) and mother Barbara Mccarthy (~0.92 confidence) and mother Helen Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mccarthy
b. ~1895
Source father
● Household
· direct · ~0.92
Father
John Mccarthy
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Barbara Mccarthy
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Helen Mccarthy
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Mccarthy
Daughter · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Mary Mccarthy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccarthy
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Mccarthy
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mccarthy
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mccarthy
Sibling · 1940 · age 13
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01659-00665)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Doherty | 60 | Head | — | Ireland |
| 2 | Mary O'Rourke | 75 | Lodger | — | Ireland |
| 3 | William Mooney | 55 | Lodger | — | Ireland |
| 4 | Michael Mcdonald | 35 | Lodger | Longshoreman | New York |
| 5 | Elizabeth Desmond | 75 | Head | — | Massachusetts |
| 6 | Sarah G. Sullivan | 78 | Head | — | Massachusetts |
| 7 | Mary F. Sullivan | 75 | Sister | — | Massachusetts |
| 8 | Margaret G. Garvin | 73 | Head | — | Ireland |
| 9 | Nellie A. Garvin | 36 | Daughter | Supervisor | Massachusetts |
| 10 | James R. Garvin | 32 | Son | Sub Carrier | Massachusetts |
| 11 | Timothy Clavin | 44 | Head | Truck Driver | Massachusetts |
| 12 | Dorothy Clavin | 20 | Daughter | — | Massachusetts |
| 13 | Anne Duffy | 75 | Head | — | Ireland |
| 14 | Madeline Hatton | 35 | Daughter | Typist | Massachusetts |
| 15 | Henry Hatton | 32 | Son-in-law | Marine | Massachusetts |
| 16 | Helen Mccarthy | 45 | Head | — | Massachusetts |
| 17 | Catherine Mccarthy THIS PERSON | 20 | Daughter | File Clerk | Massachusetts |
| 18 | John Mccarthy | 19 | Son | New Worker | Massachusetts |
| 19 | Mary Mccarthy | 16 | Daughter | — | Massachusetts |
| 20 | Helen Mccarthy | 13 | Daughter | — | Massachusetts |
| 21 | Louise Mccarthy | 8 | Daughter | — | Massachusetts |
| 22 | Joseph Mccarthy | 6 | Son | — | Massachusetts |
| 23 | Elena Callahan | 52 | Head | — | Ireland |
| 24 | Francis Drummey | 52 | Housekeeper | Housekeeper | Pennsylvania |
| 25 | George Galvin | 40 | Guest | Storekeeper | Massachusetts |
| 26 | Joseph Scanlon | 9 | Nephew | — | Massachusetts |
| 27 | Francis J. Dole | 51 | Head | Watchman | Massachusetts |
| 28 | Lillian G. Dole | 41 | Wife | — | Philadelphia |
| 29 | Robert F. Dole | 22 | Son | — | Virginia |
| 30 | Walter T. Doherty | 52 | Head | Floor Man | Massachusetts |
| 31 | Marie W. Barstow | 60 | Sister | — | Massachusetts |
| 32 | Brother-In-Law John M. | None | M | Zoo | — |
| 33 | Nephew John M. Jr. | None | M | — | — |
| 34 | Daniel Harkins | 54 | Head | Floor Man | Massachusetts |
| 35 | Loretta A. Harkins | 47 | Sister | — | Massachusetts |
| 36 | Sarah Lythe | 72 | Cousin | — | Ireland |
| 37 | Ada Line | 82 | Head | — | Massachusetts |
| 38 | Susanna Line | 75 | Sister | — | Massachusetts |
| 39 | Helen Breslin | 46 | Head | Saleslady | Massachusetts |
| 40 | Julia Parker | 80 | Lodger | — | Massachusetts |
Pedigree Summary
Catherine + 5 siblings
Gen 1 · 4 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)