JM
James Mcdermott — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this James Mcdermott across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents James & James — first a head (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Porter |
| Industry | Public Library |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Porter |
| Township / Ward | New York City |
| Est. Birth Year | ~1916 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcdermott | Daughter | — | 5 | ~1935 |
| James Mcdermott | Head | — | 24 | ~1916 |
| James Mcdermott | Son | — | 3 | ~1937 |
| Catherine Mcdermott | Spouse | — | 21 | ~1919 |
Census Appearances
1920
New York, …
Son, age 3
New York, New York · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Son, age 13
New York, New York · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Head, age 24
New-York-County, New York · implied b. ~1916 — 4 household members
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Occupation | Porter |
| Industry | Public Library |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 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 James 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 James Mcdermott (~0.92 confidence) and mother Annie Mcdermott (~0.92 confidence) and mother Rose Mcdermott (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcdermott
b. ~1885
Source father
● Household
· direct · ~0.92
Father
James Mcdermott
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Annie Mcdermott
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Rose Mcdermott
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mcdermott
Head · 1940 · age 24 · b. ~1916 · 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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02654-00567)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frieda Bergman | 52 | Head | Electrician Appliance | Germany |
| 42 | Helen M. Schelesky | 52 | Head | Saleslady | Germany |
| 43 | Agnes Keeshan | 55 | Head | — | New York |
| 44 | Charles Keeshan | 24 | Son | Apprentice Painter | New York |
| 45 | Marc Catten | 49 | Head | — | Switzerland |
| 46 | Catherine Catten | 50 | Wife | Cook | Switzerland |
| 47 | Charles Hollo | 65 | Head | — | Hungary |
| 48 | Robert Una | 44 | Head | Painter | Switzerland |
| 49 | Leonie Una | 39 | Wife | Maid | Switzerland |
| 50 | Agnes Una | 18 | Daughter | — | Switzerland |
| 51 | Anita Una | 16 | Daughter | — | Switzerland |
| 52 | William Reilly | 45 | Head | Chauffeur | New York |
| 53 | Mary J. Reilly | 45 | Wife | Restaurant Worker | Irish Free State |
| 54 | Frances Reilly | 15 | Daughter | — | New York |
| 55 | Romeo Pillin | 45 | Head | Laborer | Yugoslavia |
| 56 | John Downey | 78 | Head | — | New York |
| 57 | Charles Byrne | 60 | Head | Cook | Irish Free State |
| 58 | Catherine Sherry | 60 | Lodger | — | Irish Free State |
| 59 | Mary Morris | 64 | Head | House Maid | Wales |
| 60 | Edith Morris | 22 | Daughter | House Maid | Wales |
| 61 | Stanley Morris | 17 | Son | — | Wales |
| 62 | Bridget Flynn | 67 | Head | — | New York |
| 63 | Margaret Byrne | 55 | Head | Chamber Maid | Irish Free State |
| 64 | Peter Modny | 55 | Head | Fireman | Poland |
| 65 | Jessie Modny | 49 | Wife | — | Poland |
| 66 | Stella Modny | 20 | Daughter | Saleslady | New York |
| 67 | Della Heffernan | 34 | Head | Maid | Irish Free State |
| 68 | Margaret Heffernan | 14 | Daughter | — | New York |
| 69 | Patrick Heffernan | 13 | Son | — | New York |
| 70 | Catherine Heffernan | 9 | Daughter | — | New York |
| 71 | James Mcdermott THIS PERSON | 24 | Head | Porter | New York |
| 72 | Catherine Mcdermott | 21 | Wife | — | New York |
| 73 | Catherine Mcdermott | 5 | Daughter | — | New York |
| 74 | James Mcdermott | 3 | Son | — | New York |
| 75 | Marie De Chasseneuil | 65 | Head | — | France |
| 76 | Emil Schefflery | 59 | Head | Machinist | Lithuania |
| 77 | — | None | — | — | — |
| 78 | Ted Sandler | 30 | Head | Art Director | Massachusetts |
| 79 | Rose Sandler | 44 | Sister | — | Massachusetts |
| 80 | Rouhlla Andersson | 45 | Head | Lawyer | Florida |
Related Census Records
Pedigree Summary
James
Gen 1 · 4 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)