JM
James Mcdermott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this James Mcdermott across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 5-person household.
Age 69
b. ~1871
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Worcester |
| Est. Birth Year | ~1871 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Ann Mcdermott | Daughter | — | 25 | ~1915 |
| Margaret Mcdermott | Daughter | — | 22 | ~1918 |
| James Mcdermott | Head | — | 69 | ~1871 |
| Joseph Mcdermott | Son | — | 27 | ~1913 |
| Annie Mcdermott | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Worcester, Massachusetts
Head, age 45
Worcester, Massachusetts · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1910 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Dyer |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | ireland |
1930
Worcester, Massachusetts
Head, age 55
Worcester, Massachusetts · implied b. ~1875 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Carpenter |
| Industry | Builder |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 35.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Worcester-County, Massachusetts
Head, age 69
Worcester-County, Massachusetts · implied b. ~1871 — 5 household members
| Surname | McDermott |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Highest Grade | No 0 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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.
Show:
This person
Anchor record
James Mcdermott
Head · 1940 · age 69 · b. ~1871 · Massachusetts
★ 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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01719-00361)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodore De Rosse | 60 | Head | Polisher | Canada Fr |
| 2 | Georgiana De Rosse | 60 | Wife | — | Canada Fr |
| 3 | Leo F. De Rosse | 37 | Son | Counter Man | Massachusetts |
| 4 | Paul De Rosse | 33 | Son | Polisher | Massachusetts |
| 5 | George De Rosse | 29 | Son | Roofer | Massachusetts |
| 6 | Cyril Southworth | 26 | Head | Retired | Massachusetts |
| 7 | Frances Southworth | 24 | Wife | Credit Manager | Massachusetts |
| 8 | Irene D'Abbe | 33 | Wife | — | Massachusetts |
| 9 | Claire D'Abbe | 15 | Daughter | — | Massachusetts |
| 10 | Alice Collins | 36 | Aunt | Maid | Massachusetts |
| 11 | Louis Davereau | 28 | Lodger | Chauffeur | Massachusetts |
| 12 | Philip Daignault | 56 | Head | Janitor | New Hampshire |
| 13 | Delia Daignault | 67 | Wife | — | Vermont |
| 14 | John F. Griffin | 30 | Head | Policeman | Massachusetts |
| 15 | May Griffin | 34 | Wife | — | Massachusetts |
| 16 | Virginia Griffin | 10 | Daughter | — | Massachusetts |
| 17 | Richard Griffin | 5 | Son | — | Massachusetts |
| 18 | Bridget Griffin | 65 | Mother-in-law | — | Ireland |
| 19 | James Mcdermott THIS PERSON | 69 | Head | — | Ireland |
| 20 | Annie Mcdermott | 60 | Wife | — | Ireland |
| 21 | Joseph Mcdermott | 27 | Son | Plumber Assistant | Ireland |
| 22 | Ann Mcdermott | 25 | Daughter | — | Massachusetts |
| 23 | Margaret Mcdermott | 22 | Daughter | Office Work | Massachusetts |
| 24 | Walter Kelly | 69 | Head | — | New York |
| 25 | Nellie A. Kelly | 59 | Wife | — | Massachusetts |
| 26 | Edward Kelly | 37 | Son | — | Massachusetts |
| 27 | William Kelly | 23 | Son | — | Massachusetts |
| 28 | Rose Kelly | 21 | Daughter | — | Massachusetts |
| 29 | John A. Feto | 42 | Head | Laborer | Massachusetts |
| 30 | Madeline Feto | 42 | Wife | — | Massachusetts |
| 31 | Minnie May Feto | 78 | Aunt | — | Canada Fr |
| 32 | Winthrop Safford | 47 | Head | Salesman | Massachusetts |
| 33 | Marion Safford | 45 | Wife | — | Massachusetts |
| 34 | Warren Safford | 3 | Son | — | Massachusetts |
| 35 | Sandra Safford | 0 | Daughter | — | Massachusetts |
| 36 | Albert J. Minnie | 49 | Head | Machinist | New Hampshire |
| 37 | Florence Minnie | 42 | Wife | Stitcher | Massachusetts |
| 38 | Joseph L. Fuller | 34 | Head | — | Massachusetts |
| 39 | Anna Fuller | 33 | Wife | — | Massachusetts |
| 40 | Mabel Mary Ann Fuller | 12 | Daughter | — | Massachusetts |
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)