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Lucy Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Lucy Thomas across the 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Thomas |
| Given Name | Lucy M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Oyster Bay Town |
| 1935 Residence (County) | Nassau |
| Additional Details | |
| Occupation | Sales girl |
| Industry | Bakery shop |
| Class of Worker | PW |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Sales Girl |
| Township / Ward | Oyster Bay Town |
| Est. Birth Year | ~1921 |
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 Lucy | Age | Birth yr |
|---|---|---|---|---|
| George Thomas | Son | — | 14 | ~1926 |
| Charles Thomas | Son | — | 23 | ~1917 |
| Lucy Thomas | Daughter | — | 19 | ~1921 |
| Charles Thomas | Spouse | — | 45 | ~1895 |
| Marjery Thomas | Daughter | — | 12 | ~1928 |
| Robert Thomas | Son | — | 11 | ~1929 |
| Lucy Thomas | Head | — | 76 | ~1864 |
| Henrietta Thomas | Daughter | — | 25 | ~1915 |
| Lucile Thomas | Daughter | — | 21 | ~1919 |
| Frances Thomas | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Nassau, New …
Daughter, age 9
Nassau, New York · implied b. ~1921 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Lucy M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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
Nassau-County, New …
Daughter, age 19
Nassau-County, New York · implied b. ~1921 — 10 household members
| Surname | Thomas |
| Given Name | Lucy M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Oyster Bay Town |
| 1935 Residence (County) | Nassau |
| Occupation | Sales girl |
| Industry | Bakery shop |
| Class of Worker | PW |
| Income (1939) | 298 |
| 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 Lucy Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lucy Thomas
Daughter · 1940 · age 19 · b. ~1921 · New York
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Sibling
Charles Thomas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucile Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henrietta Thomas
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjery Thomas
Sibling · 1940 · age 12
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 — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02694-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Ella Greig | 5 | Daughter | — | New York |
| 2 | David John Greig | 5 | Son | — | New York |
| 3 | Lucy M. Thomas | 76 | Head | — | New York |
| 4 | Charles Mac Thomas | 45 | Husband | — | New York |
| 5 | Henrietta Thomas | 25 | Daughter | Nurse Aid | New York |
| 6 | Charles M. Thomas | 23 | Son | Clerk | New York |
| 7 | Lucile S. Thomas | 21 | Daughter | Clerical Work | New York |
| 8 | Lucy M. Thomas THIS PERSON | 19 | Daughter | Sales Girl | New York |
| 9 | Frances A. Thomas | 16 | Daughter | — | New York |
| 10 | George A. Thomas | 14 | Son | Caddy | New York |
| 11 | Marjery Thomas | 12 | Daughter | — | New York |
| 12 | Robert J. Thomas | 11 | Son | — | New York |
| 13 | Rose Banholzer | 82 | Head | — | Irish Free State |
| 14 | Walter E. North | 30 | Head | Steam Fitter | New York |
| 15 | Marion E. North | 28 | Wife | Operator | Canada |
| 16 | Nick Bohachek | 51 | Head | Cement Finisher | Austria |
| 17 | Tessie Bohachek | 48 | Wife | — | Austria |
| 18 | George H. Harkins | 66 | Head | Inspector Of Road | New York |
| 19 | Mary Harkins | 55 | Wife | — | Pennsylvania |
| 20 | Desiree E. Harkins | 17 | Step-daughter | — | New York |
| 21 | William G. Mollitor | 55 | Head | Postmaster | New York |
| 22 | Dorothy E. Mollitor | 50 | Wife | — | New York |
| 23 | Raymond J. Mollitor | 21 | Son | Helper | New York |
| 24 | George Blymann | 60 | Head | Market Driver | New York |
| 25 | Margaret Blymann | 54 | Wife | — | New York |
| 26 | Helen Blymann | 23 | Daughter | Bookkeeper | New York |
| 27 | Madeline Blymann | 21 | Daughter | Mangler | New York |
| 28 | Francis Blymann | 18 | Son | — | New York |
| 29 | Raymond Blymann | 15 | Son | Farm Hand | New York |
| 30 | Edward Strong | 40 | Head | Construction Foreman | Michigan |
| 31 | Anna Strong | 39 | Wife | — | New York |
| 32 | Myriam Strong | 15 | Daughter | — | New York |
| 33 | Warren Strong | 11 | Son | — | New York |
| 34 | Audrey Strong | 8 | Daughter | — | New York |
| 35 | Ernest A. Gundlach | 32 | Head | Chauffeur | Germany |
| 36 | Sylvia Gundlach | 30 | Wife | Sales Girl | New York |
| 37 | Philip Gendron | 42 | Head | Sight-Fitter | Canada |
| 38 | Beatrice Gendron | 32 | Wife | — | New York |
| 39 | Phyllis Gendron | 10 | Daughter | — | New York |
| 40 | Caroline Atkinson | 61 | Mother-in-law | — | New York |
Related Census Records
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)