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Thomas Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Thomas Leonard across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Thomas & Julia — first a son (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Leonard |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Musician |
| Industry | Orchestra |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 120 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Musician |
| Township / Ward | Orange City |
| Est. Birth Year | ~1912 |
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 |
|---|---|---|---|---|
| Julia Kane | Other | — | 84 | ~1856 |
| Jane Leonard | Daughter | — | 24 | ~1916 |
| Charles Leonard | Son | — | 21 | ~1919 |
| Julia Leonard | Head | — | 61 | ~1879 |
| Thomas Leonard | Son | — | 28 | ~1912 |
| John Leonard | Son | — | 25 | ~1915 |
Census Appearances
1920
Essex, New …
Son, age 7
Essex, New Jersey · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 18
Essex, New Jersey · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Occupation | Musician |
| Industry | Orchestra |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Son, age 28
Essex-County, New Jersey · implied b. ~1912 — 6 household members
| Surname | Leonard |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange City |
| 1935 Residence (County) | Essex |
| Occupation | Musician |
| Industry | Orchestra |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 120 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Leonard (~0.92 confidence) and mother Julia Leonard (~0.92 confidence) and mother Julia Leonard (~0.60 confidence) and mother Mary Leonard (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Thomas Leonard
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Julia Leonard
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Julia Leonard
b. ~1907
Source mother
● Household
· direct · ~0.6
Mother
Mary Leonard
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Leonard
Son · 1940 · age 28 · b. ~1912 · New Jersey
★ You are viewing this record
Sibling
Jane Leonard
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Leonard
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Leonard
Sibling · 1940 · age 21
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02339-01011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Fennessy | 69 | Head | — | Irish Free State |
| 2 | Catherine Fennessy | 40 | Daughter | Typist | New Jersey |
| 3 | Elizabeth Fennessy | 36 | Daughter | Clerk | New Jersey |
| 4 | Ruth Fennessy | 26 | Daughter | Operator | New Jersey |
| 5 | Gertrude Gedding | 36 | Head | Proprietor | New Jersey |
| 6 | Gerald Gedding | 15 | Son | — | New Jersey |
| 7 | Patrick Drury | 63 | Head | Clerk | New Jersey |
| 8 | Mary Drury | 59 | Wife | — | New Jersey |
| 9 | William Drury | 39 | Son | Ticket Agent | New Jersey |
| 10 | Nellie Drury | 23 | Son | Clerk | New Jersey |
| 11 | Patrick Drury | 49 | Cousin | Watchman | Irish Free State |
| 12 | Harry Mcnulty | 38 | Head | Nightweight | New Jersey |
| 13 | Bertha Mcnulty | 35 | Wife | Secretary | New Jersey |
| 14 | Meice Hiles | 67 | Mother | — | New Jersey |
| 15 | Samuel Faskle | 49 | Head | Dealer | Russia |
| 16 | Clara Faskle | 48 | Wife | — | New York |
| 17 | Louis Faskle | 23 | Son | — | New York |
| 18 | Bernard Faskle | 19 | Son | — | New York |
| 19 | Morton Faskle | 12 | Son | — | New York |
| 20 | Verden Kine | 44 | Head | Ironworker | Pennsylvania |
| 21 | Frances Kine | 44 | Wife | — | Massachusetts |
| 22 | James Mcmanus | 52 | Head | Patrolman | New Jersey |
| 23 | Louise Mcmanus | 46 | Wife | — | New Jersey |
| 24 | Joseph Mcmanus | 29 | Son | Chauffeur | New Jersey |
| 25 | Herbert Jacobs | 37 | Head | Salesman | Russia |
| 26 | Lillian Jacobs | 31 | Wife | — | New York |
| 27 | Eugene Jacobs | 4 | Son | — | New Jersey |
| 28 | Arthur Jacobs | 1 | Son | — | New Jersey |
| 29 | Richard Borquist | 12 | Son | — | New Jersey |
| 30 | Cecile Savage | 22 | Boarder | Saleslady | New Jersey |
| 31 | Julia Leonard | 61 | Head | — | New Jersey |
| 32 | Thomas Leonard THIS PERSON | 28 | Son | Musician | New Jersey |
| 33 | John Leonard | 25 | Son | Clerk | New Jersey |
| 34 | Jane Leonard | 24 | Daughter | Tracer | New Jersey |
| 35 | Charles Leonard | 21 | Son | Clerk | New Jersey |
| 36 | Julia Kane | 84 | Mother | — | Irish Free State |
| 37 | Ludovico Esposito | 54 | Head | Barber | Italy |
| 38 | Bianca Esposito | 54 | Wife | — | Italy |
| 39 | Victor Esposito | 24 | Son | App. Toolmaker | New Jersey |
| 40 | Teresa Esposito | 23 | In-law | — | New Jersey |
Pedigree Summary
Thomas + 3 siblings
Gen 1 · 4 parents
~0.84
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)