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Thomas Duffy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Providence-County, Rhode Island
Our Model Tree links this Thomas Duffy across the 1920, 1930 and 1940 US Censuses in Providence-County, Rhode Island (XGBoost, ~Confirmed), with identified parents John & Patrick — first a head (b.~1893), then head of a 6-person household.
Age 47
b. ~1893
Male
Head
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Providence-County, Rhode Island |
| Surname | Duffy |
| Given Name | Thomas L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Pawtucket City |
| 1935 Residence (County) | Providence |
| Additional Details | |
| Occupation | Lathe Hand |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1300 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Lathe Hand |
| Township / Ward | Pawtucket City |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Raymond Duffy | Son | — | 13 | ~1927 |
| Francis Duffy | Daughter | — | 17 | ~1923 |
| Mary Duffy | Spouse | — | 43 | ~1897 |
| James Duffy | Son | — | 19 | ~1921 |
| Thomas Duffy | Son | — | 15 | ~1925 |
| Thomas Duffy | Head | — | 47 | ~1893 |
Census Appearances
1920
Providence, Rhode …
Son, age 25
Providence, Rhode Island · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Manager |
| Industry | Dry Goods Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Providence, Rhode …
Son, age 35
Providence, Rhode Island · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 27 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Truck driver |
| Industry | Lumber/Misc. Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Providence-County, Rhode …
Head, age 47
Providence-County, Rhode Island · implied b. ~1893 — 6 household members
| Surname | Duffy |
| Given Name | Thomas L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Pawtucket City |
| 1935 Residence (County) | Providence |
| Occupation | Lathe Hand |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1300 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 John Duffy (~0.92 confidence) and father Patrick Duffy (~0.92 confidence) and mother Mary Duffy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Duffy
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Patrick Duffy
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Duffy
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Duffy
Head · 1940 · age 47 · b. ~1893 · Rhode Island
★ 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 — Providence-County, Rhode Island
Open full size
1940 US Federal Census — Providence-County, Rhode Island
Page Contents
22 people indexed on this census page (nara:1940:m-t0627-03768-00694)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gloria Johnson | 10 | Daughter | — | Rhode Island |
| 42 | Dorothy Johnson | 7 | Daughter | — | Rhode Island |
| 43 | John J Killian | 52 | Head | Conductor | Rhode Island |
| 44 | Agnes Killian | 50 | Wife | — | Rhode Island |
| 45 | Stephen Mcaloon | 41 | Head | Finisher | Rhode Island |
| 46 | Thomas V Mcaloon | 39 | Brother | Dyer | Rhode Island |
| 47 | John F Mcaloon | 37 | Brother | Dyer | Rhode Island |
| 48 | Jennie X Kennedy | 60 | Head | — | Ireland |
| 49 | James Kennedy | 37 | Son | Mail Carrier | Rhode Island |
| 50 | Maybelle Kennedy | 35 | Wife | — | Rhode Island |
| 51 | Maureen Kennedy | 8 | Daughter | — | Rhode Island |
| 52 | Joan Kennedy | 6 | Daughter | — | Rhode Island |
| 53 | Thomas L Duffy THIS PERSON | 47 | Head | Lathe Hand | Rhode Island |
| 54 | Mary X Duffy | 43 | Wife | — | Rhode Island |
| 55 | James Duffy | 19 | Son | Auto Parts | Rhode Island |
| 56 | Francis Duffy | 17 | Daughter | — | Rhode Island |
| 57 | Thomas Duffy | 15 | Son | — | Rhode Island |
| 58 | Raymond Duffy | 13 | Son | — | Rhode Island |
| 59 | James H Gannon | 43 | Head | Finishing Department | New Hampshire |
| 60 | Emma A Gannon | 42 | Wife | — | Rhode Island |
| 61 | Thomas Gannon | 8 | Son | — | Rhode Island |
| 62 | Annie Lennon | 74 | Lodger | — | Rhode Island |
Pedigree Summary
Thomas
Gen 1 · 3 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)