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Mary Mcdermott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Mary Mcdermott across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 10-person household.
Age 35
b. ~1905
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | New York |
| Est. Birth Year | ~1905 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Mcdermott | Daughter | — | 2 | ~1938 |
| Anna Mcdermott | Daughter | — | 12 | ~1928 |
| Bernard Mcdermott | Head | — | 42 | ~1898 |
| Gerald Mcdermott | Son | — | 7 | ~1933 |
| Eugene Mcdermott | Son | — | 6 | ~1934 |
| Bernard Mcdermott | Son | — | 14 | ~1926 |
| Thomas Mcdermott | Son | — | 11 | ~1929 |
| Joseph Mcdermott | Son | — | 9 | ~1931 |
| Charles Mcdermott | Son | — | 5 | ~1935 |
| Mary Mcdermott | Spouse | — | 35 | ~1905 |
Census Appearances
1930
New York, …
Other, age 25
New York, New York · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | Maid |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| Naturalization Status | Alien |
| Year of Immigration | 1926 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Maid |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
New-York-County, New …
Spouse, age 35
New-York-County, New York · implied b. ~1905 — 10 household members
| Surname | McDermott |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Mary Mcdermott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcdermott
Spouse · 1940 · age 35 · b. ~1905 · 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-t0627-02641-00064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ann Lock | 69 | lodger | — | Irish Free State |
| 2 | Charles L. Mcguiness | 58 | lodger | Marble Setter | New York |
| 3 | Ann C. Faber | 24 | lodger | Mangle | Ohio |
| 4 | William Wilson | 25 | lodger | 30 | New Jersey |
| 5 | Peter Oneal | 37 | lodger | Salesman | Irish Free State |
| 6 | Michael Ziegeler | 41 | Head | Driver | New York |
| 7 | Jackina Ziegeler | 43 | wife | — | New York |
| 8 | Hugh Ziegeler | 26 | son | Chauffer | New York |
| 9 | Michael Ziegeler | 20 | son | Delivery Boy | New York |
| 10 | Frances Ziegeler | 18 | son | Laborer | New York |
| 11 | Katherine Ziegeler | 13 | daughter | — | New York |
| 12 | George Ziegeler | 11 | son | — | New York |
| 13 | Edward Ziegeler | 8 | son | — | New York |
| 14 | Joan Ziegeler | 6 | daughter | — | New York |
| 15 | Ann Ziegeler | 3 | daughter | — | New York |
| 16 | Hugh Feeney | 73 | father-in-law | — | New York |
| 17 | John Kilcommons | 50 | Head | Rigger | Irish Free State |
| 18 | Delia Kilcommons | 48 | wife | — | Holland |
| 19 | Cornelia Kilcommons | 22 | daughter | Saleswoman | New York |
| 20 | Margaret Kilcommons | 20 | daughter | Receptionist | New York |
| 21 | Karl R. Oberlander | 55 | Head | Baker | Germany |
| 22 | Martha J. Oberlander | 48 | wife | — | Germany |
| 23 | Joseph Hosey | 49 | Head | Superintendent | Irish Free State |
| 24 | Bridget Hosey | 47 | wife | Superintendent | Irish Free State |
| 25 | Ann Hosey | 23 | daughter | File Clerk | Irish Free State |
| 26 | Bernard Hosey | 21 | son | Doorman | Irish Free State |
| 27 | Joseph Jr. Hosey | 19 | son | New Worker | Irish Free State |
| 28 | Roseanna Hosey | 14 | daughter | — | Irish Free State |
| 29 | Thomas Hosey | 13 | son | — | Irish Free State |
| 30 | Bernard Mcdermott | 42 | Head | Long Shore Man | Illinois |
| 31 | Mary Mcdermott THIS PERSON | 35 | wife | — | Irish Free State |
| 32 | Bernard Mcdermott | 14 | son | — | Illinois |
| 33 | Thomas Mcdermott | 11 | son | — | Illinois |
| 34 | Joseph Mcdermott | 9 | son | — | Illinois |
| 35 | Gerald Mcdermott | 7 | son | — | New York |
| 36 | Eugene Mcdermott | 6 | son | — | New York |
| 37 | Charles Mcdermott | 5 | son | — | New York |
| 38 | Anna Mcdermott | 12 | daughter | — | Illinois |
| 39 | Alice Mcdermott | 2 | daughter | — | New York |
| 40 | Hans Jensen | 42 | Head | Garage Floorman | Germany |
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)