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Thomas Duffy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this Thomas Duffy across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 6-person household.
Age 58
b. ~1882
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Duffy |
| Given Name | Thomas P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Kingston Borough |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Fire Boss |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 318 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Fire Boss |
| Township / Ward | Kingston Borough |
| Est. Birth Year | ~1882 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Edmund Duffy | Son | — | 23 | ~1917 |
| Margaret Duffy | Spouse | — | 58 | ~1882 |
| Anna Grady | Other | — | 66 | ~1874 |
| Thomas Duffy | Head | — | 58 | ~1882 |
| Thomas Duffy | Son | — | 25 | ~1915 |
| Paul Duffy | Son | — | 14 | ~1926 |
Census Appearances
1920
Luzerne, Pennsylvania
Head, age 36
Luzerne, Pennsylvania · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fire Boss |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1904 |
| Birthplace (normalized) | england |
1930
Luzerne, Pennsylvania
Head, age 47
Luzerne, Pennsylvania · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 30 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Foreman |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Luzerne-County, Pennsylvania
Head, age 58
Luzerne-County, Pennsylvania · implied b. ~1882 — 6 household members
| Surname | Duffy |
| Given Name | Thomas P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Kingston Borough |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Occupation | Fire Boss |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 318 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Duffy
Head · 1940 · age 58 · b. ~1882 · 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 — Luzerne-County, Pennsylvania
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1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03554-00542)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David M. Morgan | 19 | Son | — | Pennsylvania |
| 2 | John C. Morgan | 15 | Son | — | Pennsylvania |
| 3 | Thomas W. Loftus | 53 | Head | Telegraph Operator | Pennsylvania |
| 4 | Frances Loftus | 47 | Wife | — | Pennsylvania |
| 5 | Eleanor M. Morgan | 26 | Lodger | File Clerk | Pennsylvania |
| 6 | Albert J. Halsman | 53 | Head | Clerk | Pennsylvania |
| 7 | Valeria Halsman | 46 | Wife | — | New York |
| 8 | Richard E. Rosser | 61 | Head | Power House Engineer | Wales |
| 9 | Mary Joan Rosser | 62 | Wife | — | Wales |
| 10 | Rachel A. Rosser | 24 | Daughter | — | Pennsylvania |
| 11 | Earl W. Ross | 45 | Head | Maintenance Foreman | Virginia |
| 12 | Ida M. Ross | 48 | Wife | — | Pennsylvania |
| 13 | Robert W. Ross | 15 | Son | — | Pennsylvania |
| 14 | William S. Dickie | 50 | Head | Salesman | Pennsylvania |
| 15 | Bertha Dickie | 44 | Wife | — | Pennsylvania |
| 16 | Kenneth Dickie | 23 | Son | New Worker | Pennsylvania |
| 17 | Louis Leger | 44 | Head | Traveling Salesman | Pennsylvania |
| 18 | Cecil Leger | 39 | Wife | — | Pennsylvania |
| 19 | Fred A. Sterling | 58 | Head | Clerk | Pennsylvania |
| 20 | Mary E. Sterling | 58 | Wife | — | Maryland |
| 21 | Thomas P. Duffy THIS PERSON | 58 | Head | Fire Boss | England |
| 22 | Margaret Duffy | 58 | Wife | — | Pennsylvania |
| 23 | Thomas G. Duffy | 25 | Son | Stock Clerk | Pennsylvania |
| 24 | Edmund R. Duffy | 23 | Son | Assistant Cashier | Pennsylvania |
| 25 | Paul Duffy | 14 | Son | — | Pennsylvania |
| 26 | Anna Grady | 66 | Sister-in-law | — | Pennsylvania |
| 27 | Robert Mullen | 48 | Head | Salesman | Pennsylvania |
| 28 | Kathryn Mullen | 47 | Wife | — | New Hampshire |
| 29 | Margaret A. Mullen | 20 | Daughter | — | Pennsylvania |
| 30 | John Mullen | 15 | Son | — | Pennsylvania |
| 31 | Betty Mullen | 10 | Daughter | — | Pennsylvania |
| 32 | Agnes Morgan | 26 | Daughter | Booking | Pennsylvania |
| 33 | Kenneth Church | 62 | Head | Druggist | Pennsylvania |
| 34 | Mary L. Church | 61 | Wife | — | Pennsylvania |
| 35 | John J. Kelly | 45 | Head | Railroad Fireman | Pennsylvania |
| 36 | Katherine Kelly | 48 | Wife | — | Pennsylvania |
| 37 | John J. Jr. Kelly | 20 | Son | — | Pennsylvania |
| 38 | Bernhard Kelly | 18 | Son | — | Pennsylvania |
| 39 | Mary Kelly | 17 | Daughter | — | Pennsylvania |
| 40 | Francis Kelly | 14 | Son | — | Pennsylvania |
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)