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Thomas Duffy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Thomas Duffy across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a son (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Male
Son
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Duffy |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Underwriter |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Underwriter |
| Township / Ward | Brentwood Borough Part |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Anna Duffy | Other | — | 30 | ~1900 |
| Franklin Duffy | Other | — | 9 | ~1921 |
| Thomas Duffy | Head | — | 66 | ~1864 |
| Thomas Duffy | Son | — | 30 | ~1900 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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 |
1920
Allegheny, Pennsylvania
Son, age 19
Allegheny, Pennsylvania · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Collector |
| Industry | Publishing Co. |
| Class of Worker | W |
| 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 — 4 household members
| Surname | Duffy |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Underwriter |
| Industry | Insurance |
| 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 Thomas Duffy across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Thomas Duffy (~0.92 confidence) and mother Mary Duffy (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Duffy
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Mary Duffy
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Duffy
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:fifteenthcensus00reel1961rs:0113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mercer Musella | 6 | Son | — | Pennsylvania |
| 2 | Mike Musella | 47 | Head | Manager | Yugoslavia |
| 3 | Violet Musella | 43 | Wife | Housewife | Yugoslavia |
| 4 | Bernard Musella | 21 | Son | Laborer | Pennsylvania |
| 5 | Adeline Musella | 19 | Daughter | Stenographer | Pennsylvania |
| 6 | Albert Musella | 17 | Son | None | Pennsylvania |
| 7 | Mary Musella | 15 | Son | None | Pennsylvania |
| 8 | Olga Musella | 13 | Daughter | None | Pennsylvania |
| 9 | Leon Kurovoski | 43 | Head | Manager | Poland |
| 10 | Wadyslava Kurovoski | 36 | Wife | Housewife | Pennsylvania |
| 11 | Leon Kurovoski | 14 | Son | None | Pennsylvania |
| 12 | Irene Kurovoski | 11 | Daughter | None | Pennsylvania |
| 13 | Florence Kurovoski | 9 | Daughter | None | Pennsylvania |
| 14 | Wanda Kurovoski | 2 | Daughter | None | Pennsylvania |
| 15 | Juliana Machova | 18 | Servant | Servant | Poland |
| 16 | Joseph G. Loughran | 49 | Head | Carpenter | England |
| 17 | Anna E. Loughran | 57 | Wife | Housewife | Ohio |
| 18 | Alice R. Brown | 21 | Stepdaughter | None | Ohio |
| 19 | Andrew Pajorski | 63 | Head | None | Poland |
| 20 | Victoria Pajorski | 49 | Wife | Housewife | Poland |
| 21 | Leo Pajorski | 33 | Son | Painter | Pennsylvania |
| 22 | Michael Pajorski | 28 | Son | Chauffeur | Pennsylvania |
| 23 | Walter Pajorski | 23 | Son | Chauffeur | Pennsylvania |
| 24 | Valentine Pajorski | 19 | Son | None | Pennsylvania |
| 25 | Stanley Pajorski | 15 | Son | None | Pennsylvania |
| 26 | John Pajorski | 14 | Son | None | Pennsylvania |
| 27 | Edward Pajorski | 13 | Son | None | Pennsylvania |
| 28 | Teresa Pajorski | 6 | Daughter | None | Pennsylvania |
| 29 | Thomas J. Duffy | 66 | Head | None | Pennsylvania |
| 30 | Thomas J. Duffy THIS PERSON | 30 | Son | Underwriter | Pennsylvania |
| 31 | Anna Duffy | 30 | Daughter-in-law | Housewife | Pennsylvania |
| 32 | Franklin Duffy | 9 | Grandson | None | Pennsylvania |
| 33 | Harry C. Howard | 50 | Head | Foreman | England |
| 34 | Bertha Howard | 47 | Wife | Housewife | Pennsylvania |
| 35 | Robert Howard | 15 | Son | None | Pennsylvania |
| 36 | Walter Howard | 9 | Son | None | Pennsylvania |
| 37 | Albert Loss | 40 | Head | Motion Picture Op. | Sweden |
| 38 | Bertha P. Loss | 36 | Wife | Housewife | Pennsylvania |
| 39 | Alberta M. Loss | 5 | Daughter | None | Pennsylvania |
| 40 | Joseph Hall | 72 | Head | None | Ohio |
| 41 | Agnes Hall | 66 | Wife | Housewife | England |
| 42 | Robert Hall | 25 | Son | Teacher | Pennsylvania |
| 43 | Elizabeth Hall | 23 | Daughter | Teacher | Pennsylvania |
| 44 | Herbert Hollander | 24 | Head | Driver | Pennsylvania |
| 45 | Frances Hollander | 20 | Wife | Housewife | Pennsylvania |
| 46 | Samuel J. Minarch | 52 | Head | Driver | Pennsylvania |
| 47 | Rose Minarch | 45 | Wife | Housewife | Pennsylvania |
| 48 | Elizabeth M. Beam | 27 | Daughter | Teacher | Pennsylvania |
| 49 | Donald A. Beam | 6 | Grandson | None | Pennsylvania |
| 50 | Frank Young | 39 | Head | Driver | Pennsylvania |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 2 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)