JF
John Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Flaherty across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 9-person household.
Age 54
b. ~1886
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Pittsburgh |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Labor |
| Industry | Express Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1764 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Labor |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1886 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Anna Flaherty | Daughter | — | 17 | ~1923 |
| Joseph Flaherty | Son | — | 6 | ~1934 |
| James Flaherty | Son | — | 12 | ~1928 |
| Regis Flaherty | Son | — | 8 | ~1932 |
| John Flaherty | Son | — | 19 | ~1921 |
| John Flaherty | Head | — | 54 | ~1886 |
| Sarah Flaherty | Spouse | — | 52 | ~1888 |
| Anne Waldel | Other | — | 70 | ~1870 |
| Margaret Flaherty | Daughter | — | 14 | ~1926 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 44
Allegheny, Pennsylvania · implied b. ~1876 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Allegheny, Pennsylvania
Head, age 49
Allegheny, Pennsylvania · implied b. ~1881 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Allegheny-County, Pennsylvania
Head, age 54
Allegheny-County, Pennsylvania · implied b. ~1886 — 9 household members
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Pittsburgh |
| Naturalization Status | Naturalized |
| Occupation | Labor |
| Industry | Express Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1764 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Flaherty
Head · 1940 · age 54 · b. ~1886 · Pennsylvania
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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-t0627-03653-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Don Allan | 21 | Son | Labor | Penna. |
| 2 | Leonore Allan | 13 | Daughter | — | Penna. |
| 3 | Estelle Janess | 19 | Heice | Clerk-Sales | S. Carolina |
| 4 | Maxine Janess | 16 | Heice | — | S. Carolina |
| 5 | Peter A. Lavorgna | 44 | Head | Musician | Penna. |
| 6 | Madeline Lavorgna | 41 | Wife | — | Penna. |
| 7 | Robert A. Lavorgna | 17 | Son | — | Penna. |
| 8 | Peter Jr. Lavorgna | 15 | Son | — | Penna. |
| 9 | Richard Lavorgna | 13 | Son | — | Penna. |
| 10 | Herman Hoesch | 33 | Head | Carpenter | Penna. |
| 11 | Elizabeth Hoesch | 28 | Wife | — | Penna. |
| 12 | Harry R. Zonis | 33 | Head | Clerk-Sales | Penna. |
| 13 | Blanche Zonis | 35 | Wife | — | Russia |
| 14 | Frank Zonis | 4 | Son | — | Penna. |
| 15 | Irma Billott | 23 | Maid | Maid | Penna. |
| 16 | John Flaherty THIS PERSON | 54 | Head | Labor | Ireland |
| 17 | Sarah Flaherty | 52 | Wife | — | Ireland |
| 18 | John Jr. Flaherty | 19 | Son | New Worker | Penna. |
| 19 | Anna Flaherty | 17 | Daughter | — | Penna. |
| 20 | Margaret Flaherty | 14 | Daughter | — | Penna. |
| 21 | James Flaherty | 12 | Son | — | Penna. |
| 22 | Regis Flaherty | 8 | Son | — | Penna. |
| 23 | Joseph Flaherty | 6 | Son | — | Penna. |
| 24 | Anne Waldel | 70 | Aunt | — | Ireland |
| 25 | Samuel E. Muee | 71 | Head | — | Penna. |
| 26 | Anna Muee | 62 | Wife | — | Penna. |
| 27 | Elsie L. Muee | 40 | Daughter | — | Penna. |
| 28 | Andrew R. Langley | 70 | Head | Tule Operator | Ireland |
| 29 | Hannah Langley | 53 | Wife | — | Wales |
| 30 | Thomas James | 72 | Head | — | Wales |
| 31 | Mary James | 65 | Wife | — | Wales |
| 32 | David D. James | 41 | Son | Labor | Penna. |
| 33 | William P. James | 39 | Son | Director | Penna. |
| 34 | Louis H. Abbott | 62 | Head | Clerk-Sales | Illinois |
| 35 | Edith J. Abbott | 58 | Wife | — | Wales |
| 36 | Arthur J. Abbott | 20 | Son | — | Penna. |
| 37 | Charles Musson | 68 | Head | Tailor | Penna. |
| 38 | Anna Musson | 61 | Wife | — | Penna. |
| 39 | Harry J. Kennedy | 50 | Head | — | Penna. |
| 40 | Jennie Kennedy | 49 | Wife | — | Penna. |
Related Census Records
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)