JL
John Leahy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bristol-County, Rhode Island
Our Model Tree links this John Leahy across the 1930 and 1940 US Censuses in Bristol-County, Rhode Island (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 13-person household.
Age 12
b. ~1928
Male
Son
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bristol-County, Rhode Island |
| Surname | Leahy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Bristol |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Rhode Island |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | Barrington Town |
| Est. Birth Year | ~1928 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Florence Leahy | Daughter | — | 16 | ~1924 |
| Lorraine Leahy | Daughter | — | 6 | ~1934 |
| Virginia Leahy | Daughter | — | 3 | ~1937 |
| Janet Leahy | Daughter | — | 10 | ~1930 |
| Robert Leahy | Son | — | 5 | ~1935 |
| Katherine Leahy | Daughter | — | 11 | ~1929 |
| Thomas Leahy | Son | — | 17 | ~1923 |
| Mabel Leahy | Spouse | — | 38 | ~1902 |
| Margaret Leahy | Daughter | — | 1 | ~1939 |
| Thomas Leahy | Head | — | 44 | ~1896 |
| Raymond Leahy | Son | — | 15 | ~1925 |
| Michael Leahy | Son | — | 8 | ~1932 |
| John Leahy | Son | — | 12 | ~1928 |
Census Appearances
1930
Bristol, Rhode …
Son, age 2
Bristol, Rhode Island · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leahy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Massachusetts |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Bristol-County, Rhode …
Son, age 12
Bristol-County, Rhode Island · implied b. ~1928 — 13 household members
| Surname | Leahy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Bristol |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Rhode Island |
| 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 John Leahy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Leahy
Son · 1940 · age 12 · b. ~1928 · Rhode Island
★ You are viewing this record
Sibling
Robert Leahy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Leahy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Leahy
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Leahy
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Leahy
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet Leahy
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Leahy
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Leahy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Leahy
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Leahy
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bristol-County, Rhode Island
Open full size
1940 US Federal Census — Bristol-County, Rhode Island
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03757-00020)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Susan M. Kitchen | 54 | Wife | — | Massachusetts |
| 2 | Jack Kitchen | 27 | Son | Wood Turner | Massachusetts |
| 3 | Rita Kitchen | 22 | Daughter | — | Massachusetts |
| 4 | John Casey | 17 | Nephew | — | Massachusetts |
| 5 | Thomas Leahy | 44 | Head | Switchboard Operator | Rhode Island |
| 6 | Mabel F. Leahy | 38 | Wife | — | Massachusetts |
| 7 | Thomas Leahy | 17 | Son | Lacquer Sprayer | Rhode Island |
| 8 | Florence Leahy | 16 | Daughter | — | Rhode Island |
| 9 | Raymond Leahy | 15 | Son | — | Massachusetts |
| 10 | John Leahy THIS PERSON | 12 | Son | — | Rhode Island |
| 11 | Katherine Leahy | 11 | Daughter | — | Rhode Island |
| 12 | Janet Leahy | 10 | Daughter | — | Rhode Island |
| 13 | Michael Leahy | 8 | Son | — | Rhode Island |
| 14 | Lorraine Leahy | 6 | Daughter | — | Rhode Island |
| 15 | Robert Leahy | 5 | Son | — | Rhode Island |
| 16 | Virginia N. Leahy | 3 | Daughter | — | Rhode Island |
| 17 | Margaret Leahy | 1 | Daughter | — | Rhode Island |
| 18 | John Pietruszka | 44 | Head | Loom Fixer | Massachusetts |
| 19 | Katarzyna Pietruszka | 43 | Wife | Weaver | Poland |
| 20 | Adam Pietruszka | 23 | Son | Clerk | Rhode Island |
| 21 | Frank Pietruszka | 22 | Son | Farm Hand | Rhode Island |
| 22 | Amelia Pietruszka | 20 | Daughter | Weaver | Rhode Island |
| 23 | Leonora Pietruszka | 18 | Daughter | — | Rhode Island |
| 24 | Benjamin Pietruszka | 15 | Son | — | Rhode Island |
| 25 | Rose Pietruszka | 10 | Daughter | — | Rhode Island |
| 26 | Veronica Pietruszka | 9 | Daughter | — | Rhode Island |
| 27 | John De Luca | 51 | Head | Machine Operator | Italy |
| 28 | Antoinetta De Luca | 39 | Wife | — | Rhode Island |
| 29 | Antonio De Biase | 10 | Step-son | — | Rhode Island |
| 30 | Filomena De Biase | 9 | Step-daughter | — | Rhode Island |
| 31 | Pietro Angellone | 58 | Head | Carpenter | Italy |
| 32 | Mary Angellone | 53 | Wife | — | Italy |
| 33 | Thomasina Angellone | 24 | Daughter | Splitter Operator | Rhode Island |
| 34 | Pasqualina Angellone | 20 | Daughter | Inspector | Rhode Island |
| 35 | Peter Angellone | 14 | Son | — | Rhode Island |
| 36 | Matilda Angellone | 12 | Daughter | — | Rhode Island |
| 37 | Joseph Scalera | 57 | Head | — | Italy |
| 38 | Benedetta Scalera | 55 | Wife | — | Italy |
| 39 | Lena Scalera | 23 | Daughter | Sewing | Rhode Island |
| 40 | Carmine Di Biase | 24 | Head | Mechanic | Rhode Island |
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)