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Mary Lester — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Lester across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: New York
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Lester |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Separated |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Thompson | Head | — | 30 | ~1910 |
| Richard Jenkins | Son | — | 12 | ~1928 |
| Mamie Lester | Other | — | 40 | ~1900 |
| Virginia Jones | Other | — | 38 | ~1902 |
| Lottie Thompson | Spouse | — | 27 | ~1913 |
| Mary Lester | Daughter | — | 20 | ~1920 |
| Anna Jenkins | Other | — | 34 | ~1906 |
| Ethel Jones | Daughter | — | 16 | ~1924 |
| Willie Jones | Son | — | 15 | ~1925 |
| John Thompson | Son | — | 10 | ~1930 |
Census Appearances
1930
Kings, New …
Daughter, age 10
Kings, New York · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lester |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 20
Kings-County, New York · implied b. ~1920 — 10 household members
| Surname | Lester |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Separated |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Highest Grade | Hs 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 Mary Lester across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lester
Daughter · 1940 · age 20 · b. ~1920 · New York
★ You are viewing this record
Sibling
Richard Jenkins
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Jones
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Jones
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Thompson
Sibling · 1940 · age 10
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02576-00727)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claude Pratt | 24 | Head | Tailor | So Carolina |
| 2 | Florine Pratt | 22 | Wife | — | No Carolina |
| 3 | Charles Nesbit | 30 | Head | — | No Carolina |
| 4 | Clara Nesbit | 24 | Wife | — | No Carolina |
| 5 | Lee White | 30 | Head | Restaurant | China |
| 6 | Ollie White | 20 | Wife | — | So Carolina |
| 7 | Sadie Jenkins | 30 | Boarder | Domestic | No Carolina |
| 8 | Mary Hudson | 22 | Boarder | — | So Carolina |
| 9 | Carl Nelson | 38 | Head | Laborer | Alabama |
| 10 | Julius Mays | 22 | Daughter | — | No Carolina |
| 11 | Margaret Mays | 20 | Daughter | — | Virginia |
| 12 | William Thompson | 30 | Head | Handyman | Maryland |
| 13 | Lottie Thompson | 27 | Wife | — | Washington |
| 14 | John Thompson | 10 | Son | — | New York |
| 15 | Anna May Jenkins | 34 | Widow | — | New York |
| 16 | Richard Jenkins | 12 | Son | — | New York |
| 17 | Mamie Lester | 40 | Widow | — | New York |
| 18 | Mary Lester THIS PERSON | 20 | Daughter | — | New York |
| 19 | Virginia Jones | 38 | Widow | Domestic | No Carolina |
| 20 | Ethel Jones | 16 | Daughter | — | New York |
| 21 | Willie Jones | 15 | Son | — | New York |
| 22 | Jack Campbell | 40 | Head | Helper | So Carolina |
| 23 | Alice Campbell | 30 | Wife | — | So Carolina |
| 24 | Fanny Brown | 24 | Sister | Domestic | So Carolina |
| 25 | Grace Hood | 30 | Head | Domestic | Massachusetts |
| 26 | Arthur Wilson | 36 | Head | Porter | So Carolina |
| 27 | Marion Wilson | 36 | Wife | — | So Carolina |
| 28 | Arthur Wilson | 15 | Son | — | New York |
| 29 | Ruby Shanley | 24 | Head | Domestic | Georgia |
| 30 | Ruby Pyne | 24 | Sister | — | Georgia |
| 31 | Ruby Allen | 19 | Neice | — | No Carolina |
| 32 | Carl Anderson | 36 | Head | Operator | So Carolina |
| 33 | Clepius Anderson | 34 | Wife | — | Tennessee |
| 34 | Donald Anderson | 14 | Son | — | New York |
| 35 | Carl Jr Anderson | 11 | Son | — | New York |
| 36 | Henrietta Johnson | 39 | Head | Domestic | Virginia |
| 37 | Thelma Johnson | 19 | Daughter | — | Virginia |
| 38 | Ernest Johnson | 17 | Son | — | Virginia |
| 39 | Grace Jones | 22 | Lodger | — | So Carolina |
| 40 | Virginia Evans | 24 | Lodger | Domestic | So Carolina |
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)