JL
John Leahy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Providence-County, Rhode Island
Our Model Tree links this John Leahy across the 1930 and 1940 US Censuses in Providence-County, Rhode Island (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 11-person household.
Age 40
b. ~1900
Male
Head
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Providence-County, Rhode Island |
| Surname | Leahy |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Providence |
| 1935 Residence (County) | Providence |
| Additional Details | |
| Occupation | Lubricator |
| Industry | Municipal Garage |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Lubricator |
| Township / Ward | City Of Providence |
| Est. Birth Year | ~1900 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Leahy | Son | — | 10 | ~1930 |
| Patricia Leahy | Daughter | — | 7 | ~1933 |
| Jean Leahy | Daughter | — | 11 | ~1929 |
| Maureen Leahy | Daughter | — | 3 | ~1937 |
| William Leahy | Son | — | 5 | ~1935 |
| Edward Leahy | Son | — | 5 | ~1935 |
| Eleanor Leahy | Daughter | — | 14 | ~1926 |
| Catherine Leahy | Spouse | — | 39 | ~1901 |
| Elizabeth Leahy | Daughter | — | ~1940 | |
| Catherine Leahy | Daughter | — | 13 | ~1927 |
| John Leahy | Head | — | 40 | ~1900 |
Census Appearances
1930
Providence, Rhode …
Son, age 28
Providence, Rhode Island · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leahy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Freight Clerk |
| Industry | Transportation Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Providence-County, Rhode …
Head, age 40
Providence-County, Rhode Island · implied b. ~1900 — 11 household members
| Surname | Leahy |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Providence |
| 1935 Residence (County) | Providence |
| Occupation | Lubricator |
| Industry | Municipal Garage |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | H-2 |
| 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 John Leahy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Leahy
Head · 1940 · age 40 · b. ~1900 · Rhode Island
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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 — Providence-County, Rhode Island
Open full size
1940 US Federal Census — Providence-County, Rhode Island
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03777-00841)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Cameron | 22 | Daughter | Winder | Rhode Island |
| 42 | John J. Leahy THIS PERSON | 40 | Head | Lubricator | Rhode Island |
| 43 | Catherine Leahy | 39 | Wife | — | Rhode Island |
| 44 | Eleanor P. Leahy | 14 | Daughter | — | Rhode Island |
| 45 | Catherine M. Leahy | 13 | Daughter | — | Rhode Island |
| 46 | Jean M. Leahy | 11 | Daughter | — | Rhode Island |
| 47 | John J. Leahy | 10 | Son | — | Rhode Island |
| 48 | Patricia A. Leahy | 7 | Daughter | — | Rhode Island |
| 49 | Edward P. Leahy | 5 | Son | — | Rhode Island |
| 50 | William P. Leahy | 5 | Son | — | Rhode Island |
| 51 | Maureen Leahy | 3 | Daughter | — | Rhode Island |
| 52 | Elizabeth J. Leahy | 0 | Daughter | — | Rhode Island |
| 53 | Earl E. Pemberton | 29 | Head | Electrician'S Helper | Rhode Island |
| 54 | Lillie Pemberton | 32 | Wife | — | Rhode Island |
| 55 | Lillie R. Pemberton | 7 | Daughter | — | Rhode Island |
| 56 | Clifford E. Pemberton | 6 | Son | — | Rhode Island |
| 57 | Shirley D. Pemberton | 4 | Daughter | — | Rhode Island |
| 58 | Lillian Martin | 51 | Mother-in-law | — | Rhode Island |
| 59 | Minnie Fairman | 55 | Head | — | Rhode Island |
| 60 | Minnie M. Fairman | 21 | Daughter | Trap Spooler | Rhode Island |
| 61 | Arthur G. Fairman | 20 | Son | Chain Maker | Rhode Island |
| 62 | James H. Fairman | 33 | Son | Fireman | Rhode Island |
| 63 | Margaret Mccombs | 49 | Head | — | Rhode Island |
| 64 | Maude Spillane | 47 | Lodger | Platform Man | New Hampshire |
| 65 | Thomas Monague | 40 | Head | Sheet Worker | England |
| 66 | Gertrude Monague | 36 | Wife | — | Rhode Island |
| 67 | Thomas F. Monague | 13 | Son | — | Rhode Island |
| 68 | Thomas L. Etheridge | 38 | Head | Bartender | Rhode Island |
| 69 | John C. Etheridge | 50 | Brother | — | Rhode Island |
| 70 | Ruth Murphy | 44 | Head | — | Rhode Island |
| 71 | Ruth Murphy | 18 | Daughter | File Clerk | Rhode Island |
| 72 | Barbara Murphy | 16 | Daughter | — | Rhode Island |
| 73 | Claire Murphy | 12 | Daughter | — | Rhode Island |
| 74 | Frederick Murphy | 8 | Son | — | Rhode Island |
| 75 | Avis Murphy | 5 | Daughter | — | Rhode Island |
| 76 | Clara Small | 63 | Head | — | North Carolina |
| 77 | Charles Small | 21 | Son | Laborer | Rhode Island |
| 78 | Charlotte Sullivan | 70 | Head | — | Rhode Island |
| 79 | Joseph Cromwell | 54 | Head | Porter | Rhode Island |
| 80 | Grace Cromwell | 57 | Wife | — | Connecticut |
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)