JL
James Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Queens-County, New York
Our Model Tree links this James Leonard across the 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed), with identified parents James & Margaret — first a head (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | Leonard |
| Given Name | James @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | N.Y. City |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Meter Reader |
| Industry | Gas Company |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1872 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Meter Reader |
| Township / Ward | Ny City |
| Est. Birth Year | ~1909 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Maureen Leonard | Daughter | — | 3 | ~1937 |
| Margaret Leonard | Daughter | — | ~1940 | |
| James Leonard | Head | — | 31 | ~1909 |
| James Leonard | Son | — | 2 | ~1938 |
| Mary Leonard | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Queens, New …
Son, age 10
Queens, New York · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Queens, New …
Son, age 21
Queens, New York · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Meter Tester |
| Industry | Electric Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Queens-County, New …
Head, age 31
Queens-County, New York · implied b. ~1909 — 5 household members
| Surname | Leonard |
| Given Name | James @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | N.Y. City |
| 1935 Residence (County) | Queens |
| Occupation | Meter Reader |
| Industry | Gas Company |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1872 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 James Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Leonard (~0.92 confidence) and mother Margaret Leonard (~0.92 confidence) and mother Margaret Leonard (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Leonard
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Leonard
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Margaret Leonard
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Leonard
Head · 1940 · age 31 · b. ~1909 · 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 — Queens-County, New York
Open full size
1940 US Federal Census — Queens-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02738-00038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James @ Leonard THIS PERSON | 31 | Head | Meter Reader | New York |
| 2 | Mary Leonard | 31 | Wife | — | Irish Free State |
| 3 | Maureen Leonard | 3 | Daughter | — | New York |
| 4 | James Leonard | 2 | Son | — | New York |
| 5 | Margaret Leonard | 0 | Daughter | — | New York |
| 6 | William Burns | 42 | Head | Auto Engraver | New York |
| 7 | Gertrude Burns | 42 | Wife | — | New York |
| 8 | Virginia Burns | 12 | Daughter | — | New York |
| 9 | William Burns | 9 | Son | — | New York |
| 10 | Jean Burns | 6 | Daughter | — | New York |
| 11 | Robert Burns | 1 | Son | — | New York |
| 12 | Charles Miggues | 46 | Head | Chauffeur | New York |
| 13 | Margaret Miggues | 30 | Wife | — | Connecticut |
| 14 | Charles Miggues | 16 | Son | — | New York |
| 15 | Ione Miggues | 12 | Daughter | — | New York |
| 16 | Albert Eagle | 55 | Head | Assistant Foreman | New York |
| 17 | Jane Eagle | 46 | Wife | — | New York |
| 18 | Jane Eagle | 5 | Daughter | — | New York |
| 19 | Elmer Mullen | 34 | Head | Projectionist | New York |
| 20 | Dorothy Mullen | 30 | Wife | — | New York |
| 21 | Frank Roache | 58 | Head | Fireman (Retired) | New York |
| 22 | Joseph Pirz | 46 | Head | Builder | Austria |
| 23 | Angelina Pirz | 44 | Wife | — | Austria |
| 24 | Anton Pirz | 25 | Son | Builder | New York |
| 25 | Frank Pirz | 24 | Son | Builder | New York |
| 26 | Ada Pirz | 19 | Daughter | — | Austria |
| 27 | Frederick Reithel | 53 | Head | Machinist | New York |
| 28 | Florence Reithel | 43 | Wife | — | New York |
| 29 | Florence M Reithel | 22 | Daughter | Clerical | New York |
| 30 | Frederick Reithel | 18 | Son | Machinist | New York |
| 31 | Robert R Reithel | 17 | Son | — | New York |
| 32 | Henry Klueman | 57 | Lodger | Checker | Germany |
| 33 | Edward Holmes | 36 | Head | Repairman | New York |
| 34 | Loretta Holmes | 32 | Wife | — | New Jersey |
| 35 | Loretta G Holmes | 4 | Daughter | — | New York |
| 36 | Donald Manzey | 30 | Head | Interior Decorating | Canada |
| 37 | Doris Manzey | 31 | Wife | Registered Nurse | Massachusetts |
| 38 | Deanne Manzey | 6 | Daughter | — | New York |
| 39 | Patricia Manzey | 5 | Daughter | — | New York |
| 40 | Elizabeth Whelan | 52 | Head | — | New York |
Pedigree Summary
James
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)