TM
Thomas Mcdermott — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Thomas Mcdermott across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | McDermott |
| Given Name | Thomas L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Leather Worker |
| Industry | Tannery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 140 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Leather Worker |
| Township / Ward | Danvers Town |
| Est. Birth Year | ~1908 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Bridget Mcdermott | Head | — | 65 | ~1875 |
| Mary Mcdermott | Daughter | — | 38 | ~1902 |
| Edward Mcdermott | Son | — | 25 | ~1915 |
| Thomas Mcdermott | Son | — | 32 | ~1908 |
| Joseph Mcdermott | Son | — | 35 | ~1905 |
Census Appearances
1910
Essex, Massachusetts
Son, age 2
Essex, Massachusetts · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Rhode Island |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Son, age 12
Essex, Massachusetts · implied b. ~1908 — 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 | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Rhode Island |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 21
Essex, Massachusetts · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDermott |
| Given Name | Thomas A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Rhode Island |
| Occupation | Dyeing Boy |
| Industry | Woolen |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 32
Essex-County, Massachusetts · implied b. ~1908 — 5 household members
| Surname | McDermott |
| Given Name | Thomas L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers Town |
| 1935 Residence (County) | Essex |
| Occupation | Leather Worker |
| Industry | Tannery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 140 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mcdermott (~0.92 confidence) and father John Mcdermott (~0.92 confidence) and mother Bridget Mcdermott (~0.92 confidence) and mother Catherine Mcdermott (~0.92 confidence) and mother Elizabeth Mcdermott (~0.92 confidence) and mother Josephine Mcdermott (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mcdermott
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Mcdermott
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Bridget Mcdermott
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Catherine Mcdermott
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mcdermott
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Josephine Mcdermott
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcdermott
Son · 1940 · age 32 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Edward Mcdermott
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcdermott
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcdermott
Sibling · 1940 · age 38
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01579-00047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest F. Fish | 51 | Head | Chauffeur | Canada |
| 2 | Mary H. Fish | 45 | Wife | — | Massachusetts |
| 3 | John H. Fish | 21 | Son | Mechanic | Massachusetts |
| 4 | J. Elizabeth Fish | 18 | Daughter | — | Massachusetts |
| 5 | Joseph J. Moran | 23 | Son-in-law | Truck Driver | Massachusetts |
| 6 | Norma L. Moran | 23 | Daughter | — | Massachusetts |
| 7 | Jeanne F. Moran | 3 | Granddaughter | — | Massachusetts |
| 8 | Mary L. Moran | 1 | Granddaughter | — | Massachusetts |
| 9 | Sara A. Casey | 72 | Head | — | Massachusetts |
| 10 | Annie F. Casey | 72 | Sister | — | Massachusetts |
| 11 | Thomas P. Casey | 64 | Brother | Retired Officer | Massachusetts |
| 12 | Andrew Hammond | 44 | Head | Estimator - Stock | Massachusetts |
| 13 | Eveline C. Hammond | 44 | Wife | — | Massachusetts |
| 14 | Ruth Hammond | 19 | Daughter | — | Massachusetts |
| 15 | Robert Wood | 48 | Head | Florist | England |
| 16 | Mary Wood | 49 | Wife | — | — |
| 17 | Helen Wood | 22 | Daughter | — | Massachusetts |
| 18 | Herbert C. Creswell | 60 | Head | Portable Engine Operator | New York |
| 19 | Mary E. Creswell | 57 | Wife | — | New York |
| 20 | Roger H. Creswell | 17 | Son | — | Massachusetts |
| 21 | Robert Creswell | 14 | Son | — | Massachusetts |
| 22 | Dorothy Creswell | 7 | Daughter | — | Massachusetts |
| 23 | Alexander Burt | 44 | Head | Machinist | Canada |
| 24 | Josephine Burt | 35 | Wife | — | Massachusetts |
| 25 | Midan Paraska | 27 | Head | Leather Finisher | New York |
| 26 | Madeline Paraska | 25 | Wife | — | New York |
| 27 | Judith Paraska | 5 | Daughter | — | New York |
| 28 | Fred A. Ware | 39 | Head | Foreman | Massachusetts |
| 29 | Edith C. Ware | 36 | Wife | — | Massachusetts |
| 30 | Earl A. Ware | 13 | Son | — | Massachusetts |
| 31 | Elsie R. Ware | 11 | Daughter | — | Massachusetts |
| 32 | Roland G. Ware | 7 | Son | — | Massachusetts |
| 33 | Wilfred L. Graves | 44 | Head | Automobile Mechanic | Maine |
| 34 | Bessie C. Graves | 40 | Wife | — | Maine |
| 35 | Raymond M. Graves | 13 | Son | — | Maine |
| 36 | Bridget Mcdermott | 65 | Head | — | Irish Free State |
| 37 | Mary E. Mcdermott | 38 | Daughter | Leather Worker | Massachusetts |
| 38 | Joseph H. Mcdermott | 35 | Son | Mason'S Helper | Massachusetts |
| 39 | Thomas L. Mcdermott THIS PERSON | 32 | Son | Leather Worker | Massachusetts |
| 40 | Edward C. Mcdermott | 25 | Son | Farmer | Massachusetts |
Pedigree Summary
Thomas + 3 siblings
Gen 1 · 6 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)