ED
Edward Duffy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Edward Duffy across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Duffy |
| Given Name | Edward Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Adjuster |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 2600 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Adjuster |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1904 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Edward | Age | Birth yr |
|---|---|---|---|---|
| Maryanne Duffy | Daughter | — | 6 | ~1934 |
| Michael Duffy | Son | — | 4 | ~1936 |
| Mary Duffy | Spouse | — | 35 | ~1905 |
| Edward Duffy | Head | — | 36 | ~1904 |
| Roger Duffy | Son | — | 7 | ~1933 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Edward L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 26
Allegheny, Pennsylvania · implied b. ~1904 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffey |
| Given Name | Edward L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Adjuster |
| Industry | Fire Insurance Firm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 36
Allegheny-County, Pennsylvania · implied b. ~1904 — 5 household members
| Surname | Duffy |
| Given Name | Edward Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Adjuster |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 2600 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| 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 Edward 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
Edward Duffy
Head · 1940 · age 36 · b. ~1904 · 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
37 people indexed on this census page (nara:1940:m-t0627-03664-00314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane Cramer | 70 | Wife | — | Pennsylvania |
| 43 | George Busch | 41 | Head | Machinist | Pennsylvania |
| 44 | Ileta Busch | 40 | Wife | — | Missouri |
| 45 | Virginia Busch | 10 | Daughter | — | Pennsylvania |
| 46 | Joseph Mccauley | 38 | Head | Bricklayer | Scotland |
| 47 | Margaret Mccauley | 39 | Wife | — | Scotland |
| 48 | Margaret Mccauley | 5 | Daughter | — | Pennsylvania |
| 49 | Bernard Mccauley | 3 | Son | — | Pennsylvania |
| 50 | Henry Shields | 44 | Brother-in-law | Butler | Scotland |
| 51 | Rose Shields | 44 | Sister | — | Scotland |
| 52 | Samuel Atchison | 48 | Head | Clerk - Office | Pennsylvania |
| 53 | Agnes Atchison | 51 | Wife | — | Pennsylvania |
| 54 | Louis C. Gieguelais | 38 | Head | Pharmacist | Pennsylvania |
| 55 | Ruth E. Gieguelais | 30 | Wife | — | Pennsylvania |
| 56 | Joan Gieguelais | 3 | Daughter | — | Pennsylvania |
| 57 | Jerome Gieguelais | 32 | Brother | Drug Clerk | Pennsylvania |
| 58 | Glenn Houghton | 50 | Head | Biology Teacher | Pennsylvania |
| 59 | Olera Houghton | 46 | Wife | — | Pennsylvania |
| 60 | Glennera Houghton | 16 | Daughter | — | Pennsylvania |
| 61 | Mary Ab Houghton | 13 | Daughter | — | Pennsylvania |
| 62 | Dana Burdette | 31 | Head | Employee Relation Mgr | W. Virginia |
| 63 | Virginia Burdette | 30 | Wife | — | Ohio |
| 64 | Robert Burdette | 3 | Son | — | Pennsylvania |
| 65 | John Burdette | 1 | Son | — | Pennsylvania |
| 66 | James Buchanan | 41 | Head | Bank Clerk | Northern Ireland |
| 67 | Bryan Buchanan | 5 | Son | — | Pennsylvania |
| 68 | Mary Hillespie | 62 | Housekeeper | Housekeeper | Pennsylvania |
| 69 | Edward Leo Duffy THIS PERSON | 36 | Head | Adjuster | Pennsylvania |
| 70 | Mary Duffy | 35 | Wife | — | Pennsylvania |
| 71 | Roger Duffy | 7 | Son | — | Pennsylvania |
| 72 | Maryanne Duffy | 6 | Daughter | — | Pennsylvania |
| 73 | Michael Duffy | 4 | Son | — | Pennsylvania |
| 74 | James Plunkett | 31 | Head | Car Foreman | Pennsylvania |
| 75 | Rose Mary Plunkett | 28 | Wife | — | Pennsylvania |
| 76 | Roy Schubert | 31 | Head | Electrician | Pennsylvania |
| 77 | Ruth Schubert | 23 | Wife | — | Pennsylvania |
| 78 | Robert Schubert | 2 | Son | — | Pennsylvania |
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)