MF
Mary Flaherty — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Flaherty across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 11-person household.
Age 21
b. ~1909
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Flaherty |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Teacher |
| Township / Ward | Mckees Rocks Borough |
| Est. Birth Year | ~1909 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Flaherty | Son | — | 8 | ~1922 |
| Bernard Flaherty | Son | — | 12 | ~1918 |
| Mary Flaherty | Daughter | — | 21 | ~1909 |
| Thomas Flaherty | Son | — | 4 | ~1926 |
| John Flaherty | Head | — | 49 | ~1881 |
| Vincent Flaherty | Son | — | 14 | ~1916 |
| James Flaherty | Son | — | 10 | ~1920 |
| John Flaherty | Son | — | 18 | ~1912 |
| Anna Flaherty | Other | — | 40 | ~1890 |
| Agnes Flaherty | Daughter | — | 20 | ~1910 |
| Joseph Flaherty | Son | — | 16 | ~1914 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 11
Allegheny, Pennsylvania · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 11 household members
| Surname | Flaherty |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | W |
| 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 Mary Flaherty across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Flaherty
Daughter · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Bernard Flaherty
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Flaherty
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Flaherty
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Flaherty
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Flaherty
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Flaherty
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Flaherty
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Flaherty
Sibling · 1930 · age 10
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:fifteenthcensus00reel1966:0083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M Flaherty | 49 | Head | Postal Clerk | Pennsylvania |
| 2 | Anna Flaherty | 40 | Wife-H | — | Pennsylvania |
| 3 | Mary C Flaherty THIS PERSON | 21 | Daughter | School Teacher | Pennsylvania |
| 4 | Agnes M Flaherty | 20 | Daughter | Telephone Oper | Pennsylvania |
| 5 | John M Jr Flaherty | 18 | Son | Drug Clerk | Pennsylvania |
| 6 | Joseph F Flaherty | 16 | Son | — | Pennsylvania |
| 7 | Vincent P Flaherty | 14 | Son | — | Pennsylvania |
| 8 | Bernard J Flaherty | 12 | Son | — | Pennsylvania |
| 9 | James P Flaherty | 10 | Son | — | Pennsylvania |
| 10 | William R Flaherty | 8 | Son | — | Pennsylvania |
| 11 | Thomas A Flaherty | 4 | Son | — | Pennsylvania |
| 12 | Vincent Clemente | 50 | Head | Tailor | Italy |
| 13 | Giovanna Clemente | 45 | Wife-H | — | Italy |
| 14 | Robert A Clemente | 18 | Son | Apprentice | New York |
| 15 | William G Clemente | 15 | Son | — | Italy |
| 16 | Edward V Clemente | 13 | Son | — | New York |
| 17 | Mary Clemente | 11 | Daughter | — | New York |
| 18 | Samuel Balbeck | 53 | Head | Newsdealer | England |
| 19 | Jessie A Balbeck | 51 | Wife-H | — | Pennsylvania |
| 20 | Roy W Balbeck | 14 | Son | — | Pennsylvania |
| 21 | Earl M Balbeck | 10 | Son | — | Pennsylvania |
| 22 | Paul Zwicky | 41 | Head | Butcher | Galicia Poland |
| 23 | Pearl Zwicky | 38 | Wife-H | — | Galicia Poland |
| 24 | Mary Zwicky | 15 | Daughter | — | Delaware |
| 25 | Walter Zwicky | 13 | Son | — | Delaware |
| 26 | Anna Zwicky | 6 | Daughter | — | Pennsylvania |
| 27 | Dolores Zwicky | 5 | Daughter | — | Pennsylvania |
| 28 | John Kuzio | 28 | Bro-in-law | Laborer | Galicia Poland |
| 29 | Isaac Slone | 38 | Head | Fruit Dealer | Vilna Russia |
| 30 | Ida Slone | 33 | Wife-H | — | Przemysl Poland |
| 31 | Sylvia Shiner | 24 | Sister-in-law | Saleslady | Przemysl Poland |
| 32 | Isaac Ryave | 45 | Head | Merchant | Kiev Russia |
| 33 | Rose Ryave | 40 | wife-H | Merchant | Kiev Russia |
| 34 | Janet Ryave | 17 | Daughter | — | Pennsylvania |
| 35 | Ruth Ryave | 14 | Daughter | — | Pennsylvania |
| 36 | Melvin K Price | 28 | Head | R.R. Brakeman | Pennsylvania |
| 37 | Lois Price | 22 | wife-H | — | Pennsylvania |
| 38 | Lois Price | 5 | Daughter | — | Pennsylvania |
| 39 | M A Mikanik | 47 | Head | Merchant | Pennsylvania |
| 40 | Mary Mikanik | 41 | wife-H | — | Pennsylvania |
| 41 | Marie Mikanik | 21 | Daughter | — | Pennsylvania |
| 42 | Edward Smith | 30 | Head | Laborer | Pennsylvania |
| 43 | Barbara Smith | 24 | wife-H | — | Pennsylvania |
| 44 | Gloria Smith | 3 | Daughter | — | Pennsylvania |
| 45 | John J Lynski | 65 | Head | Flagman | Irish Free State |
| 46 | Gertrude Lynski | 56 | wife-H | — | England |
| 47 | Abram Zimanov | 51 | Head | Jeweler | Western Poland |
| 48 | Sarah Zimanov | 40 | wife-H | — | Western Poland |
| 49 | Mollie Zimanov | 25 | Daughter | Sales Lady | Western Poland |
| 50 | Esther Zimanov | 16 | Daughter | — | 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)