TM
Thomas Mcdermott — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Thomas Mcdermott across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Nurse |
| Industry | Doctor's Office |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 936 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Nurse |
| Township / Ward | New York City Brooklyn |
| 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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Edward Mcdermott | Head | — | 57 | ~1883 |
| Mary Mcdermott | Spouse | — | 54 | ~1886 |
| Dorothea Mcdermott | Daughter | — | 24 | ~1916 |
| Elizabeth Metcalf | Other | — | 91 | ~1849 |
| Thomas Mcdermott | Son | — | 26 | ~1914 |
Census Appearances
1920
Kings, New …
Son, age 5
Kings, New York · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 15
Kings, New York · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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 …
Son, age 26
Kings-County, New York · implied b. ~1914 — 5 household members
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Nurse |
| Industry | Doctor's Office |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 936 |
| 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 Thomas Mcdermott across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Mcdermott (~0.92 confidence) and father Edward Mcdermott (~0.92 confidence) and father Edward Mcdermott (~0.92 confidence) and mother Maria Mcdermott (~0.92 confidence) and mother Mary Mcdermott (~0.92 confidence) and mother Mary Mcdermott (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Mcdermott
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Edward Mcdermott
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Edward Mcdermott
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Maria Mcdermott
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Mcdermott
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Mary Mcdermott
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdermott
Son · 1940 · age 26 · b. ~1914 · New York
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Sibling
Dorothea Mcdermott
Sibling · 1940 · age 24
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-t0627-02615-00005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Taylor | 50 | Wife | — | New York |
| 2 | Theodore Jr. Taylor | 19 | Son | Delivery Boy | New York |
| 3 | Geraldine Taylor | 16 | Daughter | — | New York |
| 4 | Elizabeth Taylor | 14 | Daughter | — | New York |
| 5 | Loretta Cosgrove | 34 | Niece | Teacher | New York |
| 6 | Edward Mcdermott | 57 | Head | Clerical | New York |
| 7 | Mary Mcdermott | 54 | Wife | Counter Girl | New York |
| 8 | Thomas Mcdermott THIS PERSON | 26 | Son | Nurse | New York |
| 9 | Dorothea Mcdermott | 24 | Daughter | Sales Lady | New York |
| 10 | Elizabeth Metcalf | 91 | Sister in law | — | New York |
| 11 | Michael Maben | 48 | Head | Clerical | New York |
| 12 | Flora Maben | 45 | Wife | — | New York |
| 13 | Irma Maben | 22 | Daughter | Sales Lady | New York |
| 14 | Letty Maben | 14 | Daughter | — | New York |
| 15 | Victor Dickson | 64 | Head | Superintendent | Sweden |
| 16 | Abba Dickson | 61 | Wife | — | Sweden |
| 17 | Ester Dickson | 33 | Daughter | Switchboard Operator | New York |
| 18 | Charles Holeke | 54 | Head | Bookkeeper | New York |
| 19 | Charlotte Holeke | 49 | Wife | — | New York |
| 20 | Charlotte Hayes | 72 | Head | — | New York |
| 21 | Sidney Loftus | 65 | Head | Auditor | British English |
| 22 | Georgina Loftus | 60 | Wife | — | New York |
| 23 | Frank E. Osborne | 80 | Head | — | New York |
| 24 | Clara L. Osborne | 76 | Wife | — | Massachusetts |
| 25 | Alice King | 55 | Head | — | New York |
| 26 | Frederick A. King | 16 | Son | — | New York |
| 27 | Margaret Murphy | 64 | Sister | Houseworker | New York |
| 28 | Addie Hurd | 74 | Head | — | New York |
| 29 | Clara Brooks | 52 | Daughter | Nurse | New York |
| 30 | Herman Honald | 32 | Head | Bookkeeper | New York |
| 31 | Adele Honald | 32 | Wife | — | New York |
| 32 | Robert Honald | 13 | Grandson | — | New York |
| 33 | Hannah Gothold | 59 | Head | — | New York |
| 34 | Isabell Burke | 25 | Head | Beautician | Connecticut |
| 35 | Everett Burke | 17 | Son | Clerk | New York |
| 36 | Emil Dehm | 73 | Head | Clerical | Germany |
| 37 | Louise Dehm | 51 | Wife | — | New York |
| 38 | Joan Dehm | 3 | Daughter | — | New York |
| 39 | Richard Dehm | 1 | Son | — | New York |
| 40 | Patrick Boyle | 29 | Head | General Clerk | New York |
Pedigree Summary
Thomas + 1 sibling
Gen 1 · 6 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)