TM
Thomas Mcdermott — 1940 US Census Record
Model Tree available1940 United States Federal Census · Queens-County, New York
Our Model Tree links this Thomas Mcdermott across the 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed), with identified parents James & Michael — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | McDermott |
| Given Name | Thomas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Plumber |
| Industry | Plumbing Co. |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 349 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Plumber |
| Township / Ward | New York City |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Michael Mcdermott | Head | — | 54 | ~1886 |
| Margaret Mcdermott | Daughter | — | 24 | ~1916 |
| James Mcdermott | Son | — | 25 | ~1915 |
| Anna Mcdermott | Daughter | — | 27 | ~1913 |
| Margaret Mcdermott | Spouse | — | 52 | ~1888 |
| Joan Mcdermott | Daughter | — | 7 | ~1933 |
| Thomas Mcdermott | Son | — | 22 | ~1918 |
Census Appearances
1920
Queens, New …
Son, age 2
Queens, New York · implied b. ~1918 — 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 | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Queens, New …
Son, age 12
Queens, New York · implied b. ~1918 — 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 | 12 |
| 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
Queens-County, New …
Son, age 22
Queens-County, New York · implied b. ~1918 — 7 household members
| Surname | McDermott |
| Given Name | Thomas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Queens |
| Occupation | Plumber |
| Industry | Plumbing Co. |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 349 |
| Highest Grade | Hs 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 James Mcdermott (~0.92 confidence) and father Michael Mcdermott (~0.92 confidence) and father Michael Mcdermott (~0.92 confidence) and mother Anna Mcdermott (~0.92 confidence) and mother Margaret Mcdermott (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcdermott
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Michael Mcdermott
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Michael Mcdermott
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Anna Mcdermott
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mcdermott
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdermott
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
Margaret Mcdermott
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdermott
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Mcdermott
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdermott
Sibling · 1940 · age 25
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
38 people indexed on this census page (nara:1940:m-t0627-02750-00275)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marguerite D. Aberle | 48 | Head | — | New York |
| 42 | William Aberle | 47 | Husband | Waiter | New York |
| 43 | Marie M. Rigley | 50 | Head | Secretary | Germany |
| 44 | John M. Rigley | 18 | Son | — | Penn |
| 45 | Gordon P. Rigley | 15 | Son | — | Penn |
| 46 | Marie Merlau | 77 | Mother | — | Germany |
| 49 | Joseph Bogel | 38 | Head | Tool & Die Worker | Germany |
| 50 | Margaret Bogel | 42 | Wife | — | New York |
| 51 | Rosemary Bogel | 2 | Daughter | — | New York |
| 52 | James B. Scott | 56 | Head | Pressman | New Jersey |
| 53 | Pleasance Scott | 51 | Wife | — | New York |
| 54 | Edward Siegel | 33 | Head | Pharmacist | New York |
| 55 | Gussie Siegel | 53 | Mother | — | Austria |
| 56 | Nathan Siegel | 30 | Brother | Pharmacist | New York |
| 57 | Phillip Siegel | 28 | Brother | Pharmacist | New York |
| 58 | Morton Siegel | 26 | Brother | Pharmacist | New York |
| 59 | Florence Siegel | 24 | Sister | — | New York |
| 60 | Leo Siegel | 21 | Brother | New Worker | New York |
| 61 | Julia Dougherty | 55 | Head | — | New York |
| 62 | Thomas Dougherty | 21 | Son | Shipping Clerk | New York |
| 63 | John Dougherty | 19 | Son | Checker | New York |
| 64 | Kathryn Meinhauer | 31 | Daughter | Saleslady | New York |
| 65 | Michael J. Mcdermott | 54 | Head | Accountant | New York |
| 66 | Margaret C. Mcdermott | 52 | Wife | — | New York |
| 67 | Anna C. Mcdermott | 27 | Daughter | Stenographer | New York |
| 68 | James J. Mcdermott | 25 | Son | Police Officer | New York |
| 69 | Margaret A. Mcdermott | 24 | Daughter | Stenographer | New York |
| 70 | Thomas R. Mcdermott THIS PERSON | 22 | Son | Plumber | New York |
| 71 | Joan Mcdermott | 7 | Daughter | — | New York |
| 72 | Emma Quimby | 76 | Head | — | New York |
| 73 | Harvey Orlando Quimby | 54 | Son | Elevator Operator | New York |
| 74 | Charles L. Quimby | 48 | Son | — | New York |
| 75 | Wm. C. Whalan | 44 | Lodger | — | New York |
| 76 | Louis R. Suhr | 77 | Head | — | New York |
| 77 | Ida Suhr | 70 | Wife | — | New York |
| 78 | Mary Gardner | 48 | Daughter | — | New York |
| 79 | Park Gardner | 57 | Son-in-law | Freight Forwarder | New York |
| 80 | Jean Gardner | 12 | Daughter | — | New Jersey |
Pedigree Summary
Thomas + 4 siblings
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)