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Catherine Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Catherine Mccarthy across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Leo & Leo — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Hours Worked | 40 |
| Income (1939) | 850 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1919 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Estelle Mccarthy | Daughter | — | 17 | ~1923 |
| Leo Mccarthy | Head | — | 50 | ~1890 |
| Catherine Mccarthy | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age
Allegheny, Pennsylvania · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 3 household members
| Surname | McCarthy |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Hours Worked | 40 |
| Income (1939) | 850 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Leo Mccarthy (~0.92 confidence) and father Leo Mccarthy (~0.92 confidence) and father Leo Mccarthy (~0.92 confidence) and mother Rose Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leo Mccarthy
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Leo Mccarthy
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Leo Mccarthy
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Rose Mccarthy
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Mccarthy
Daughter · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Estelle 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03655-00124)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Pruszynski | 11 | Daughter | — | Pennsylvania |
| 2 | Stephana Pruszynski | 9 | Daughter | — | Pennsylvania |
| 3 | Elizabeth Pruszynski | 6 | Daughter | — | Pennsylvania |
| 4 | Walter Pruszynski | 0 | Son | — | Pennsylvania |
| 5 | Helen Zmenkowski | 57 | Head | — | Poland |
| 6 | Minnie Zmenkowski | 34 | Daughter | Hospital Attendant | Pennsylvania |
| 7 | Stanley Zmenkowski | 30 | Son | Laborer | Pennsylvania |
| 8 | Irene Zmenkowski | 26 | Daughter | Hospital Attendant | Pennsylvania |
| 9 | Joseph Zmenkowski | 21 | Son | New Worker | Pennsylvania |
| 10 | Cereda Zmenkowski | 19 | Daughter | Hospital Attendant | Pennsylvania |
| 11 | Philip Zmenkowski | 17 | Son | — | Pennsylvania |
| 12 | Frank Zmenkowski | 15 | Son | — | Pennsylvania |
| 13 | Chester Zmenkowski | 13 | Son | — | Pennsylvania |
| 14 | Frank Chemborski | 53 | Head | Laborer | Poland |
| 15 | Frances Chemborski | 52 | Wife | — | Poland |
| 16 | Ziggy Chemborski | 22 | Son | Clerk | Pennsylvania |
| 17 | Harry Chemborski | 19 | Son | New Worker | Pennsylvania |
| 18 | Leo Mccarthy | 50 | Head | — | Pennsylvania |
| 19 | Catherine Mccarthy THIS PERSON | 21 | Daughter | — | Pennsylvania |
| 20 | Estelle Mccarthy | 17 | Daughter | — | Pennsylvania |
| 21 | Ella Starrow | 61 | Head | Domestic Maid | Virginia |
| 22 | Mose Sumter | 36 | Son-in-law | Laborer | S. Carolina |
| 23 | Anna Sumter | 34 | Daughter | — | Pennsylvania |
| 24 | Ella Sumter | 4 | Granddaughter | — | Pennsylvania |
| 25 | Mabel Sumter | 2 | Granddaughter | — | Pennsylvania |
| 26 | Henrietta Branham | 50 | Lodger | — | Virginia |
| 27 | Charles Parano | 55 | Head | Laborer | Italy |
| 28 | Mary Parano | 52 | Wife | — | Italy |
| 29 | Michael Parano | 26 | Son | Laborer | Wisconsin |
| 30 | Rose Parano | 25 | Daughter | Assembler | Minnesota |
| 31 | Josephine Parano | 18 | Daughter | Assembler | Pennsylvania |
| 32 | Dolores Parano | 16 | Daughter | — | Pennsylvania |
| 33 | Charles Jr. Parano | 14 | Son | — | Pennsylvania |
| 34 | Joseph Parano | 11 | Son | — | Pennsylvania |
| 35 | Angeline Parano | 7 | Daughter | — | Pennsylvania |
| 36 | Philip Fay | 51 | Head | Baker | Ohio |
| 37 | Louise Fay | 49 | Wife | — | Italy |
| 38 | Sam Fay | 21 | Son | Mixing Operator | Pennsylvania |
| 39 | Christina Fay | None | Daughter | — | — |
| 40 | Philip Fay | 18 | Son | New Worker | Pennsylvania |
Pedigree Summary
Catherine + 1 sibling
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)