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Thomas Duffy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Thomas Duffy across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents Morris & Patrick — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Teacher |
| Industry | Parochial School |
| Class of Worker | PW |
| Income (1939) | 1349 |
| Highest Grade | C-4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Teacher |
| Township / Ward | New York City |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| George Duffy | Son | — | ~1940 | |
| Thomas Duffy | Head | — | 27 | ~1913 |
| Edna Duffy | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Bronx, New …
Son, age 5
Bronx, New York · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 17
Bronx, New York · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Check Writer |
| Industry | Ins. Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Head, age 27
Bronx-County, New York · implied b. ~1913 — 3 household members
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Occupation | Teacher |
| Industry | Parochial School |
| Class of Worker | PW |
| Income (1939) | 1349 |
| Highest Grade | C-4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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. Identified parents: father Morris Duffy (~0.92 confidence) and father Patrick Duffy (~0.92 confidence) and mother Annie Duffy (~0.92 confidence) and mother Nora Duffy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Morris Duffy
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Patrick Duffy
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Annie Duffy
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Nora Duffy
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Duffy
Head · 1940 · age 27 · b. ~1913 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02463-00810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Davis | 52 | Head | Clerk | Roumania |
| 2 | Frieda Davis | 45 | Wife | — | Hungary |
| 3 | Theodore Davis | 27 | Son | Musician | New York |
| 4 | Margery Davis | 25 | Daughter | Clerk | New York |
| 5 | Isidore Schneiderman | 47 | Head | Manufacturer | Poland |
| 6 | Frieda Schneiderman | 42 | Wife | — | Poland |
| 7 | Sylvia Schneiderman | 22 | Daughter | Bookkeeper | New York |
| 8 | Samuel Schneiderman | 20 | Son | Salesman | New York |
| 9 | Benjamin Ende | 52 | Head | Manager | Austria |
| 10 | Rose Ende | 45 | Wife | — | Austria |
| 11 | Dorothy Ende | 24 | Daughter | Secretary | New York |
| 12 | May Ende | 18 | Daughter | Secretary | New York |
| 13 | Beatrice Ende | 16 | Daughter | — | New York |
| 14 | Paula Schwed | 36 | Head | Designer | Czechoslovakia |
| 15 | Ethel Schwed | 66 | Mother | — | Czechoslovakia |
| 16 | Eugene Schwed | 40 | Brother | Dry Cleaner | Czechoslovakia |
| 17 | Ernest Schwed | 25 | Brother | Beautician | Czechoslovakia |
| 18 | Pincus Silverstein | 50 | Head | Salesman | New York |
| 19 | Fanny Silverstein | 48 | Wife | — | New York |
| 20 | Beatrice Silverstein | 26 | Daughter | Bookkeeper | New York |
| 21 | Samuel Silverstein | 22 | Son | Salesman | New York |
| 22 | William Fenster | 63 | Head | Manager | Austria |
| 23 | Sarah Fenster | 59 | Wife | — | Austria |
| 24 | Joseph Fenster | 34 | Son | Driver | New York |
| 25 | Rose Fenster | 32 | Daughter | Stenographer | New York |
| 26 | Joseph Meiseless | 29 | Nephew | Teacher | Austria |
| 27 | Fannie Schwartz | 47 | Head | — | New York |
| 28 | Rosalind Schwartz | 23 | Daughter | Saleslady | New York |
| 29 | Markus Schwartz | 20 | Son | Manager | New York |
| 30 | Angelo Compobono | 59 | Head | Engineer | Italy |
| 31 | Caroline Compobono | 62 | Wife | — | Italy |
| 32 | John J. O'Neille | 53 | Head | Clerk | New York |
| 33 | Mary O'Neille | 47 | Wife | — | New York |
| 34 | William Dickens | 71 | Lodger | — | New York |
| 35 | Thomas Duffy THIS PERSON | 27 | Head | Teacher | New York |
| 36 | Edna Duffy | 27 | Wife | — | New York |
| 37 | George J. Duffy | 0 | Son | — | New York |
| 38 | Gerard Voomps | 36 | Head | Engineer | New York |
| 39 | H. Clare Voomps | 35 | Wife | — | New York |
Pedigree Summary
Thomas
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)