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 Michael & Thomas — first a head (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Municipal |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1627 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Draftsman |
| Township / Ward | New York City |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Esti Mcdermott | Spouse | — | 36 | ~1904 |
| Thomas Mcdermott | Head | — | 36 | ~1904 |
| Eugene Mcdermott | Son | — | 2 | ~1938 |
| Thomas Mcdermott | Son | — | 5 | ~1935 |
Census Appearances
1920
Kings, New …
Son, age 14
Kings, New York · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas Anthony |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 25
Kings, New York · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Laborer |
| Industry | Building Industry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 36
Kings-County, New York · implied b. ~1904 — 4 household members
| Surname | McDermott |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Draftsman |
| Industry | Municipal |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1627 |
| Highest Grade | C-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 Michael Mcdermott (~0.92 confidence) and father Thomas Mcdermott (~0.92 confidence) and father Michael Mcdermott (~0.84 confidence) and mother Johanna Mcdermott (~0.84 confidence) and mother Jennie Mcdermott (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
Michael Mcdermott
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Thomas Mcdermott
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Michael Mcdermott
b. ~1856
Source father>father
● Household
· direct · ~0.84
Mother
Johanna Mcdermott
b. ~1858
Source father>mother
● Household
· direct · ~0.84
Mother
Jennie Mcdermott
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdermott
Head · 1940 · age 36 · b. ~1904 · 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 — 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-t0627-02548-00227)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Horn | 34 | Head | Helper | New York |
| 2 | Mary Horn | 34 | Wife | — | New York |
| 3 | Mary Horn | 3 | Daughter | — | New York |
| 4 | Charles Horn | 1 | Son | — | New York |
| 5 | Thomas Lyons | 49 | Lodger | Steamfitter | New York |
| 6 | William Mulligan | 65 | Lodger | — | New York |
| 7 | Margaret Clark | 30 | Lodger | Bus Girl | Pennsylvania |
| 8 | Alice Miller | 40 | Head | — | Ireland |
| 9 | Joseph A Carreau | 65 | Head | — | Massachusetts |
| 10 | Marie Carreau | 63 | Wife | — | Canada |
| 11 | Lionel Carreau | 34 | Son | — | Rhode Island |
| 12 | Armand Carreau | 27 | Son | Elevator Operator | Massachusetts |
| 13 | Antonio Carreau | 41 | Son | Doorman | Canada |
| 14 | Frank Donohue | 62 | Lodger | Truckman | New York |
| 15 | Charles E Letourneau | 25 | Head | — | Massachusetts |
| 16 | Ernest Letourneau | 75 | Son | Helping House Keeper | Massachusetts |
| 17 | Theresa Letourneau | 1 | Granddaughter | — | New York |
| 18 | Marjorie Brigham | 22 | Lodger | Waitress | New York |
| 19 | Mary Bond | 27 | Lodger | — | Germany |
| 20 | Richard Bond | 4 | Son | — | New York |
| 21 | Gustave Fraser | 32 | Lodger | Truck Driver | New York |
| 22 | Alexander Macvicar | 42 | Lodger | Signal Maintenance | Scotland |
| 23 | Thomas Mcdermott THIS PERSON | 36 | Head | Draftsman | New York |
| 24 | Esti Mcdermott | 36 | Wife | — | New York |
| 25 | Thomas Mcdermott | 5 | Son | — | New York |
| 26 | Eugene Mcdermott | 2 | Son | — | New York |
| 27 | Theodore Steinhans | 31 | Head | Manager | New York |
| 28 | Erna Steinhans | 28 | Wife | — | Germany |
| 29 | Louis J Sennstock | 60 | Head | — | Germany |
| 30 | John Hobbs | 67 | Head | Regional Appraiser | New York |
| 31 | Ethel Hobbs | 57 | Wife | — | New York |
| 32 | Jas Peyser | 41 | Head | Counterman | New York |
| 33 | Lucy Peyser | 52 | Wife | — | New York |
| 34 | Luman Perle | 31 | Head | Sailor | Massachusetts |
| 35 | Helen Perle | 31 | Wife | — | New York |
| 36 | Marie Gung | 34 | Head | — | New York |
| 37 | Marilyn Gung | 2 | Daughter | — | New York |
| 38 | Fred Stocker | 52 | Head | Taxi Cab Driver | Ohio |
| 39 | Willie May Belcher | 32 | Lodger | — | South Carolina |
| 40 | Murray Claps | 23 | Head | Painter | New York |
Pedigree Summary
Thomas
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.84
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)