ML
Margaret Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Queens-County, New York
Our Model Tree links this Margaret Leonard across the 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Clerk |
| Industry | Public Library |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 246 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New York City |
| Est. Birth Year | ~1914 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Mary Leonard | Daughter | — | 28 | ~1912 |
| Martin Leonard | Other | — | 32 | ~1908 |
| Margaret Leonard | Daughter | — | 26 | ~1914 |
| Margaret Leonard | Spouse | — | 57 | ~1883 |
| James Leonard | Head | — | 58 | ~1882 |
Census Appearances
1920
Queens, New …
Daughter, age 6
Queens, New York · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| 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 …
Daughter, age 17
Queens, New York · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Queens-County, New …
Daughter, age 26
Queens-County, New York · implied b. ~1914 — 5 household members
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Occupation | Clerk |
| Industry | Public Library |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 246 |
| 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 Margaret 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 father James Leonard (~0.92 confidence) and mother Margaret Leonard (~0.92 confidence) and mother Margaret Leonard (~0.92 confidence) and mother Margaret Leonard (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Leonard
b. ~1882
Source father
● Household
· direct · ~0.92
Father
James Leonard
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Leonard
b. ~1883
Source mother
● 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
Margaret Leonard
Daughter · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
Mary Leonard
Sibling · 1940 · age 28
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 — 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-t0627-02739-00431)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Wilson | 50 | Head | Chemist | New York |
| 2 | Bertha Wilson | 50 | Wife | — | New York |
| 3 | Dorothy Wilson | 23 | Daughter | Designer | New York |
| 4 | Mary Hannon | 62 | Housekeeper | Housekeeper | New York |
| 5 | Joseph Madel | 49 | Head | Operator | New York |
| 6 | Evelyn Madel | 42 | Wife | Statistician | New York |
| 7 | Winifred Madel | 16 | Daughter | — | New York |
| 8 | Donald Madel | 13 | Son | — | New York |
| 9 | Henry Wagner | 59 | Head | Chauffeur | Germany |
| 10 | Katherine Wagner | 59 | Wife | — | Germany |
| 11 | Madeline Wagner | 20 | Daughter | — | New York |
| 12 | Evelyn Wagner | 19 | Daughter | — | New York |
| 13 | Richard Wagner | 17 | Son | — | New York |
| 14 | Doris Wagner | 16 | Daughter | — | New York |
| 15 | James Leonard | 58 | Head | Boilermaker | North Ireland |
| 16 | Margaret Leonard | 57 | Wife | — | North Ireland |
| 17 | Mary Leonard | 28 | Daughter | Steno | New York |
| 18 | Margaret Leonard THIS PERSON | 26 | Daughter | Clerk | New York |
| 19 | Martin Leonard | 32 | Lodger | Elevator Operator | North Ireland |
| 20 | Andrew Martin | 80 | Head | City Fireman | New Jersey |
| 21 | Ellen Martin | 72 | Wife | — | England |
| 22 | William Malkmus | 37 | Son-in-law | Clerk | New York |
| 23 | Eleanor Malkmus | 35 | Daughter | Teacher | New York |
| 24 | Carol Malkmus | 6 | Daughter | — | New York |
| 25 | Fred Kuehling | 71 | Head | Butcher | Germany |
| 26 | Ida Kuehling | 62 | Wife | — | New York |
| 27 | Mae Brunner | 40 | Daughter | Engraver | New York |
| 28 | Leonard Brunner | 14 | Grandson | — | New York |
| 29 | John Dessa | 49 | Head | Mailer | New York |
| 30 | Mary Dessa | 49 | Wife | — | New York |
| 31 | Harold Dessa | 15 | Son | — | New York |
| 32 | Charles Dessa | 13 | Son | — | New York |
| 33 | Harry Koster | 58 | Head | Assoc. Manager | Germany |
| 34 | Pauline Koster | 60 | Wife | — | Austria |
| 35 | Margaret Farrell | 27 | Lodger | Nurse | Penn |
| 36 | Helen Kappell | 60 | Head | — | Germany |
| 37 | Evelyn Kappell | 30 | Daughter | Steno | New York |
| 38 | Mildred Kappell | 28 | Daughter | Clerical Work | New York |
| 39 | Wesley Kappell | 26 | Son | Clerical Work | New York |
| 40 | Ethel Kappell | 24 | Daughter | Steno | New York |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 5 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)