JF
John Flaherty — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Flaherty across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1899), then head of a 10-person household.
Age 31
b. ~1899
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Free State Ireland |
| Mother's Birthplace | Free State Ireland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Munhall Borough |
| Est. Birth Year | ~1899 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Martin Flaherty | Head | — | 58 | ~1872 |
| Elizabeth Flaherty | Daughter | — | 30 | ~1900 |
| Agnes Flaherty | Daughter | — | 16 | ~1914 |
| Festus Flaherty | Son | — | 18 | ~1912 |
| Michael Flaherty | Son | — | 20 | ~1910 |
| John Flaherty | Son | — | 31 | ~1899 |
| Mildred Flaherty | Daughter | — | 12 | ~1918 |
| Ellen Flaherty | Other | — | 54 | ~1876 |
| Martin Flaherty | Son | — | 14 | ~1916 |
| James Flaherty | Son | — | 28 | ~1902 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 21
Allegheny, Pennsylvania · implied b. ~1899 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 31
Allegheny, Pennsylvania · implied b. ~1899 — 10 household members
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Free State Ireland |
| Mother's Birthplace | Free State Ireland |
| Occupation | Laborer |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Flaherty across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Flaherty
Son · 1930 · age 31 · b. ~1899 · Pennsylvania
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Sibling
Michael Flaherty
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Flaherty
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Flaherty
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Flaherty
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Flaherty
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Flaherty
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Festus Flaherty
Sibling · 1930 · age 18
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
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:fifteenthcensus00reel1968:0353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Steven Macko | 24 | Head | Switchman | Pennsylvania |
| 2 | Helen Macko | 19 | Daughter | — | Pennsylvania |
| 3 | George Macko | 13 | Son | — | Pennsylvania |
| 4 | Joseph Macko | 10 | Son | — | Pennsylvania |
| 5 | Clement Knenzla | 51 | Head | Clerk | Pennsylvania |
| 6 | Marie Knenzla | 29 | Daughter | — | Pennsylvania |
| 7 | Caroline Knenzla | 24 | Daughter | — | Pennsylvania |
| 8 | Alma Knenzla | 16 | Daughter | — | Pennsylvania |
| 9 | William Lacey | 70 | Head | — | Free State Ireland |
| 10 | Margaret Lacey | 64 | Wife H | — | Free State Ireland |
| 11 | Joseph Lacey | 21 | Son | Laborer | Pennsylvania |
| 12 | Cecelia A. Lacey | 18 | Daughter | — | Pennsylvania |
| 13 | Michael F. O'Toole | 52 | Head | First Helper | Free State Ireland |
| 14 | Delia O'Toole | 52 | Wife H | — | Free State Ireland |
| 15 | Frances O'Toole | 23 | Daughter | — | Pennsylvania |
| 16 | Mary S. O'Toole | 20 | Daughter | — | Pennsylvania |
| 17 | Leo M. O'Toole | 18 | Son | — | Pennsylvania |
| 18 | Joseph O'Toole | 15 | Son | — | Pennsylvania |
| 19 | Paul O'Toole | 13 | Son | — | Pennsylvania |
| 20 | Joseph Martin | 21 | Boarder | Laborer | Free State Ireland |
| 21 | James Martin | 36 | Head | Agent | Pennsylvania |
| 22 | William Logan | 27 | Head | Laborer | Pennsylvania |
| 23 | Agnes Logan | 24 | Wife H | — | Pennsylvania |
| 24 | Joseph Harsanyi | 36 | Head | Laborer | Czechoslovakia |
| 25 | Barbara Harsanyi | 34 | Wife H | — | Czechoslovakia |
| 26 | Helen Harsanyi | 14 | Daughter | — | Pennsylvania |
| 27 | Mary Harsanyi | 10 | Daughter | — | Pennsylvania |
| 28 | Martin Flaherty | 58 | Head | Laborer | Free State Ireland |
| 29 | Ellen Flaherty | 54 | Wife H | — | Free State Ireland |
| 30 | John Flaherty THIS PERSON | 31 | Son | Laborer | Pennsylvania |
| 31 | Elizabeth Flaherty | 30 | Daughter | Factory Girl | Pennsylvania |
| 32 | James Flaherty | 28 | Son | Laborer | Pennsylvania |
| 33 | Michael Flaherty | 20 | Son | — | Pennsylvania |
| 34 | Festus Flaherty | 18 | Son | Stenographer | Pennsylvania |
| 35 | Agnes Flaherty | 16 | Daughter | — | Pennsylvania |
| 36 | Martin Jr. Flaherty | 14 | Son | — | Pennsylvania |
| 37 | Mildred Flaherty | 12 | Daughter | — | Pennsylvania |
| 38 | John Minda | 30 | Head | Rigger | Czechoslovakia |
| 39 | Elizabeth Minda | 28 | Wife H | — | Czechoslovakia |
| 40 | Elizabeth Minda | 4 | Daughter | — | Pennsylvania |
| 41 | Elizabeth Minda | 3 | Daughter | — | Pennsylvania |
| 42 | Christy J. Evans | 29 | Head | Truck Driver | Pennsylvania |
| 43 | Hilda Evans | 28 | Wife H | — | Pennsylvania |
| 44 | Shirley L. Evans | 2 | Daughter | — | Pennsylvania |
| 45 | Francis Mcguire | 30 | Head | Clerk | Pennsylvania |
| 46 | Cora Mcguire | 27 | Wife H | Stenographer | Pennsylvania |
| 47 | John Tipsch | 63 | Head | Steel Worker | Pennsylvania |
| 48 | Catherine Tipsch | 45 | Wife H | — | Pennsylvania |
| 49 | William Kuhns | 65 | Head | Gas Reader | Pennsylvania |
| 50 | Adelaide Kuhns | 63 | Wife H | — | Pennsylvania |
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)