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John Mccarthy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Mccarthy across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Patrick — first a son (b.~1900), then head of a 3-person household.
Age 30
b. ~1900
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | McCarthy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Charles Mccarthy | Head | — | 53 | ~1877 |
| John Mccarthy | Son | — | 30 | ~1900 |
| Mary Mccarthy | Spouse | — | 51 | ~1879 |
Census Appearances
Son, age 9
Allegheny, Pennsylvania · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 19
Allegheny, Pennsylvania · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 30
Allegheny, Pennsylvania · implied b. ~1900 — 3 household members
| Surname | McCarthy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Veteran | No |
| 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 John Mccarthy across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Thomas Mccarthy (~0.92 confidence) and father Patrick Mccarty (~0.92 confidence) and mother Mary Mccarthy (~0.92 confidence) and mother Elizabeth Mccarty (~0.92 confidence) and father Charles Mccarthy (~0.92 confidence) and mother Mary Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Mccarthy
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Patrick Mccarty
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Mary Mccarthy
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mccarty
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Charles Mccarthy
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mary Mccarthy
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mccarthy
Son · 1930 · age 30 · b. ~1900 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1980:0443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mike Byganiff | 37 | Head | Laborer | Russia |
| 52 | Petro Byganiff | 29 | Wife | — | Poland |
| 53 | Edward Byganiff | 7 | Son | — | Pennsylvania |
| 54 | Steven Byganiff | 5 | Son | — | Pennsylvania |
| 55 | John C. Hruby | 44 | Head | — | Pennsylvania |
| 56 | Loretta Hruby | 41 | Wife | — | Pennsylvania |
| 57 | Charles Hruby | 18 | Son | Laborer | Pennsylvania |
| 58 | Francis Hruby | 13 | Son | — | Pennsylvania |
| 59 | Virginia Hruby | 10 | Daughter | Laborer | Pennsylvania |
| 60 | Mary Hruby | 8 | Daughter | — | Pennsylvania |
| 61 | Ruth Hruby | 4 | Daughter | — | Pennsylvania |
| 62 | Patricia Hruby | 2 | Daughter | — | Pennsylvania |
| 63 | Charles Mccarthy | 53 | Head | — | Pennsylvania |
| 64 | Mary A. Mccarthy | 51 | Wife | Laborer | Pennsylvania |
| 65 | John Mccarthy THIS PERSON | 30 | Son | — | Pennsylvania |
| 66 | Valentine Dorkowsky | 53 | Head | Laborer | Poland |
| 67 | Alma Dorkowsky | 37 | Wife | Laborer | Poland |
| 68 | Stanley Dorkowsky | 23 | Son | — | Pennsylvania |
| 69 | Loretta Dorkowsky | 20 | Daughter | Helper | Pennsylvania |
| 70 | Elizabeth Dorkowsky | 16 | Daughter | Helper | Pennsylvania |
| 71 | William Dorkowsky | 12 | Son | — | Pennsylvania |
| 72 | Bernard Dorkowsky | 9 | Son | — | Pennsylvania |
| 73 | Catherine Baranowski | 43 | Boarder | — | Pennsylvania |
| 74 | Mary Kastner | 52 | Head | Laborer | Poland |
| 75 | Blanche Kastner | 27 | Boarder | — | Pennsylvania |
| 76 | Charles Kastner | 7 | Son | Waitress | Pennsylvania |
| 77 | Walter Zielinski | 35 | Head | — | Pennsylvania |
| 78 | Victoria Zielinski | 30 | Wife | Laborer | Pennsylvania |
| 79 | Florence Zielinski | 6 | Daughter | — | Pennsylvania |
| 80 | Elizabeth Zielinski | 3 | Daughter | — | Pennsylvania |
| 81 | Mary Zielinski | 1 | Daughter | — | Pennsylvania |
| 82 | John Giedinski | 62 | Head | — | Poland |
| 83 | Agnes Giedinski | 63 | Wife | Laborer | Poland |
| 84 | John Sikora | 30 | Head | — | Poland |
| 85 | Marie Sikora | 25 | Wife | Laborer | Pennsylvania |
| 86 | Frank Sikora | 5 | Son | — | Pennsylvania |
| 87 | Charlotte Sikora | 2 | Daughter | — | Pennsylvania |
| 88 | Joseph Budnitz | 33 | Head | — | Poland |
| 89 | Marie Budnitz | 25 | Wife | Laborer | Pennsylvania |
| 90 | Dorothy Budnitz | 4 | Daughter | — | Pennsylvania |
| 91 | Raymond Budnitz | 2 | Son | — | Pennsylvania |
| 92 | Loretta Budnitz | 1 | Daughter | — | Pennsylvania |
| 93 | Frank Rogacki | 38 | Head | — | Pennsylvania |
| 94 | Cecelia Rogacki | 38 | Wife | Laborer | Pennsylvania |
| 95 | Isabella Rogacki | 15 | Daughter | — | Pennsylvania |
| 96 | Ralph Rogacki | 12 | Son | — | Pennsylvania |
| 97 | Madeline Mackowski | 50 | Head | — | Poland |
| 98 | Alphonse Mackowski | 26 | Son | Laborer | Pennsylvania |
| 99 | Harry Mackowski | 21 | Son | Laborer | Pennsylvania |
| 100 | Sylvester Mackowski | 18 | Son | Laborer | Pennsylvania |
Related Census Records
Pedigree Summary
John
Gen 1 · 6 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)