TM
Thomas Mcgrath — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Thomas Mcgrath across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Thomas & Grace — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Combing Room |
| Industry | Woolen Mill |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 572 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Combing Room |
| Township / Ward | Lawrence City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Bernard Mcgrath | Son | — | 7 | ~1933 |
| Thomas Mcgrath | Head | — | 35 | ~1905 |
| Grace Mcgrath | Daughter | — | 5 | ~1935 |
| Evelyn Mcgrath | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Essex, Massachusetts
Son, age 14
Essex, Massachusetts · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Essex, Massachusetts
Son, age 24
Essex, Massachusetts · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Occupation | Baller |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Essex-County, Massachusetts
Head, age 35
Essex-County, Massachusetts · implied b. ~1905 — 4 household members
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Essex |
| Occupation | Combing Room |
| Industry | Woolen Mill |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 572 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Mcgrath across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Mcgrath (~0.92 confidence) and mother Grace Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Mcgrath
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Grace Mcgrath
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcgrath
Head · 1940 · age 35 · b. ~1905 · 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 — 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-t0627-01584-00277)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gladys Swarbrick | 7 | Daughter | — | Massachusetts |
| 42 | Thomas Swarbrick | 5 | Son | — | Massachusetts |
| 43 | Marilyn Swarbrick | 2 | Daughter | — | Massachusetts |
| 44 | Thomas J. O'Brien | 77 | Head | Stone Mason | Massachusetts |
| 45 | Mary Jane O'Brien | 70 | Wife | — | England |
| 46 | Margaret Carrasco | 50 | Head | Mender | Ireland |
| 47 | Thomas Mcgrath THIS PERSON | 35 | Head | Combing Room | Maine |
| 48 | Evelyn Mcgrath | 34 | Wife | — | Massachusetts |
| 49 | Bernard Mcgrath | 7 | Son | — | Massachusetts |
| 50 | Grace Mcgrath | 5 | Daughter | — | Massachusetts |
| 51 | Alexander Dickson | 64 | Head | Color Shop | Scotland |
| 52 | Catherine Dickson | 62 | Wife | — | Scotland |
| 53 | John Solbus | 48 | Head | Fruit Dealer | Poland |
| 54 | Alice Solbus | 44 | Wife | — | Poland |
| 55 | Edward Solbus | 20 | Son | Yarning | Massachusetts |
| 56 | Joseph Pruskidlo | 55 | Head | Laborer | Poland |
| 57 | Annie Pruskidlo | 52 | Wife | Drawing | Poland |
| 58 | Emile Pruskidlo | 20 | Daughter | Mender | Massachusetts |
| 59 | Edna Pruskidlo | 15 | Daughter | — | Massachusetts |
| 60 | Thomas (X) Mcnulty | 44 | Head | Sewing Project | Massachusetts |
| 61 | Mary Mcnulty | 16 | Daughter | — | Massachusetts |
| 62 | Conrad Zuppardi | 50 | Head | Comber | Italy |
| 63 | Concetta Zuppardi | 45 | Wife | Drawing | Italy |
| 64 | Louis Zuppardi | 24 | Son | — | Massachusetts |
| 65 | Irene Zuppardi | 20 | Daughter | — | Massachusetts |
| 66 | Josephine Zuppardi | 11 | Daughter | — | Massachusetts |
| 67 | Joseph Grudzinski | 67 | Head | — | Poland |
| 68 | Victoria Grudzinski | 65 | Wife | — | Poland |
| 69 | Edward Dorrow | 47 | Head | Bobbin Maker | Canada |
| 70 | Regina (X) Dorrow | 51 | Wife | — | Canada |
| 71 | Angelo Greco | 45 | Head | Own Business | Italy |
| 72 | Pauline Greco | 38 | Wife | — | Italy |
| 73 | M. Greco | 17 | Daughter | — | New York |
| 74 | John Greco | 16 | Son | — | New York |
| 75 | Concetta Greco | 15 | Daughter | — | New York |
| 76 | Marian Greco | 12 | Daughter | — | New York |
| 77 | Daniel Greco | 3 | Son | — | Massachusetts |
| 78 | Peter Jurkus | 67 | Head | Drawing | Lithuania |
| 79 | Alice Jurkus | 54 | Wife | — | Lithuania |
| 80 | John Yenmar | 67 | Head | Carding Room | England |
Pedigree Summary
Thomas
Gen 1 · 2 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)