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William Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this William Leonard across the 1910, 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1893), then head of a 7-person household.
Age 47
b. ~1893
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Adjuster |
| Industry | Envelope Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Adjuster |
| Township / Ward | New York |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Rose Leonard | Daughter | — | 23 | ~1917 |
| Dorothy Leonard | Daughter | — | 16 | ~1924 |
| Anna Leonard | Daughter | — | 14 | ~1926 |
| William Leonard | Head | — | 47 | ~1893 |
| John Leonard | Son | — | 19 | ~1921 |
| Robert Leonard | Son | — | 22 | ~1918 |
| Alice Leonard | Spouse | — | 46 | ~1894 |
Census Appearances
1910
New York, …
Son, age 15
New York, New York · implied b. ~1895 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
New York, …
Son, age 24
New York, New York · implied b. ~1896 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Harness Maker |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Son, age 36
New York, New York · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 34 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Agent |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Head, age 47
New-York-County, New York · implied b. ~1893 — 7 household members
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Occupation | Adjuster |
| Industry | Envelope Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | H 2 |
| 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 William Leonard across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Leonard (~0.92 confidence) and mother Mary Leonard (~0.92 confidence) and mother Mary Leonard (~0.92 confidence) and mother Mary Leonard (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Leonard
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Mary Leonard
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Mary Leonard
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Mary Leonard
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Leonard
Head · 1940 · age 47 · b. ~1893 · 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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-02629-00708)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodora Angeloff | 4 | Daughter | — | Pennsylvania |
| 2 | Antonio Lagos | 26 | Head | Shipping Clerk | New York |
| 3 | Adeliana Lagos | 22 | Wife | — | New York |
| 4 | William Leonard THIS PERSON | 47 | Head | Adjuster | New York |
| 5 | Alice Leonard | 46 | Wife | — | New York |
| 6 | Rose Leonard | 23 | Daughter | Feeder | New York |
| 7 | Robert Leonard | 22 | Son | Lamp Fitter | New York |
| 8 | John Leonard | 19 | Son | — | New York |
| 9 | Dorothy Leonard | 16 | Daughter | — | New York |
| 10 | Anna Leonard | 14 | Daughter | — | New York |
| 11 | Thomas Tuckey | 56 | Head | Chauffeur | Connecticut |
| 12 | Alice Tuckey | 52 | Wife | — | Massachusetts |
| 13 | Thomas Tuckey | 23 | Son | — | New York |
| 14 | Benito Dias | 28 | Head | Chauffeur | Puerto Rico |
| 15 | Matilda Dias | 26 | Wife | — | Puerto Rico |
| 16 | Rachael Dias | 5 | Daughter | — | New York |
| 17 | Vivance Dias | 1 | Daughter | — | New York |
| 18 | Frank Garcia | 24 | Brother in law | Inside Worker | Puerto Rico |
| 19 | Susan Garcia | 23 | Sister in law | — | Puerto Rico |
| 20 | Eva Garcia | 4 | Niece | — | Puerto Rico |
| 21 | Allen Barnes | 53 | Head | Milk Distributor | Georgia |
| 22 | Margaret Barnes | 54 | Wife | Quilting On Bed Lamps | Eire |
| 23 | Thomas Woods | 52 | Head | Checker | New York |
| 24 | Loretta Woods | 48 | Wife | Telephone Operator | New York |
| 25 | Thomas Woods | 20 | Son | Messenger | New York |
| 26 | Head Vasson De Conrad | None | M | Real Estate Office | — |
| 27 | Loretta Vasson De Conrad | 23 | Wife | — | Rhode Island |
| 28 | Blanche Schaefer | 61 | Head | Operator | England |
| 29 | Bromley Schaefer | 28 | Daughter | — | New York |
| 30 | Howard Schaefer | 29 | Son | Route Man | New York |
| 31 | Sam Jr. Marina | 23 | Son | Chauffeur | New York |
| 32 | Edna M. Brady | 8 | Daughter | — | New York |
| 33 | Thomas J. Donohue | 33 | Head | Mess Man | New York |
Related Census Records
Pedigree Summary
William
Gen 1 · 4 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)